Index
All events
Editor-curated. Reviewed independently from a third-party perspective.
Upcoming
CEATEC
Japan's largest IT and electronics exhibition. Organized by JEITA, held annually in October at Makuhari Messe. The 2026 theme is 'Transformation.' Over 800 exhibitors and approximately 100,000 visitors. Free admission with registration.
Japan Mobility Show Bizweek 2026
A B2B mobility co-creation event hosted by the Japan Automobile Manufacturers Association (JAMA). Held in the interim year of the main Japan Mobility Show (biennial at Tokyo Big Sight, drawing about one million visitors), co-located with CEATEC at the same venue and dates. Focused on business matching among automakers, startups, universities, and cross-industry companies, with the online matching tool Meet-up Box available before and after the show.
SPI Japan 2026
A specialist software process improvement conference run by the Japan SPI Consortium (JASPIC) since 2000. It travels to a different host city each year, and in 2026 runs for three days at AOSSA in Fukui City. Built around corporate improvement case studies and tutorials, its ¥40,000 main-conference fee marks it as a dense, practitioner-facing event.
FIT2026 Financial Information Technology
An IT event for financial institutions hosted since 2000 by the financial trade paper Nikkin. Around 200 exhibitors are paired with roughly 200 sessions, drawing practitioners from banks, credit unions and insurers. The previous edition drew over 21,000 visitors, making it one of Japan's largest cross-industry views of financial DX. An Osaka edition runs alongside the Tokyo one.
GREE Tech Conference 2026
A technology conference hosted by GREE Holdings under the theme "How We Build", framed around the process of development rather than the finished product. Three parallel tracks cover AI, data analysis, game development, infrastructure, and security, with a keynote by the company's Masaki Fujimoto. Free to attend in a hybrid format, including seats that come with an office tour.
Kaigi on Rails 2026
Japan's largest conference for Ruby on Rails users, positioned as "a web technology conference enjoyable for everyone from beginners to experts" with a strong focus on practical, production-grounded sessions. The 2026 edition runs two keynotes — Ruby creator Yukihiro Matsumoto on day one and Rails creator DHH on day two. It continues its hybrid format with several hundred on-site attendees.
CAPCOM Open Conference RE:2026 Osaka
Capcom's technical conference opening up the internals and production know-how of its in-house RE ENGINE. Returning after three years, it expands to two cities, Tokyo and Osaka. Both days, October 17-18, run the student track. Sessions reach into rendering and AI-driven QA automation on shipping titles. Free to attend, with a lottery if applications exceed capacity.
Pixel x Pixel 2026
The second edition of a creative festival dedicated to motion design, CG, VFX and real-time expression. Two simultaneous stages run at Terada Warehouse D HALL and WHAT CAFE in Tennozu, with creators from Japan and abroad including EJ Hassenfratz, Bito and illo. The first edition sold out within seven days, and this year expands both venues and lineup, closing with an after-party for networking.
DevFest 2026 in Kansai
The 2026 edition of DevFest hosted by GDG Greater Kwansai. Sessions on AI and machine learning, security, hardware and IoT are combined with a generative-AI hands-on workshop and a panel discussion, free of charge for 500 attendees in Umeda, Osaka. Following Osaka in 2024 and Kobe in 2025, this third edition mixes students with working engineers in one venue.
Computer Security Symposium 2026 (CSS2026)
The central academic symposium for security research in Japan, run by IPSJ's Computer Security research group since 1998. It convenes co-located workshops on malware countermeasures (MWS), privacy (PWS) and usable security (UWS) across five days, spanning formal theory through psychological and social dimensions. The host city rotates annually, with Hamamatsu hosting in 2026.
CTO Night & Day
An invitation-only conference for technology executives such as CTOs and VPoEs. Beyond keynotes, it centers on discussions and unconference sessions where participants bring their own management challenges, and it has rarely been open to the press. Started by AWS Japan in 2014, it reached its 14th edition in Kanazawa in 2024. In 2026 it passes to an organizing committee and runs for three days in Kobe.
ad:tech tokyo 2026
The Japanese edition of the US-originated international marketing conference ad:tech, running since 2009 and reaching its 18th year in 2026. Advertisers, agencies, media and solution providers present across sessions and an exhibition floor, with a workshop-only opening day. Its draw is the number of brand-side CMOs on stage, under the theme "Marketing in Action."
Japan IT Week Autumn 2026
The autumn edition of Japan's largest IT and DX exhibition. Composed of Japan IT Week, Japan DX & AX Week, the Sales & Digital Marketing Week, and the EC & Store Week, it is the largest such show in the second half of the year, with 780 exhibitors. Some 30,000 business professionals gather in Makuhari to compare products and hold meetings across system development, security, AI, and DX. Unlike the spring edition at Tokyo Big Sight, the autumn show is held at Makuhari Messe.
Security Days Fall 2026
One of Japan's largest cybersecurity exhibition-and-seminar events, organized by NANO OPT Media. Held twice a year, the autumn edition tours five cities including Sapporo, Osaka, Fukuoka, Tokyo, and Nagoya. It delivers, free of charge, the latest incident trends and defenses against ransomware and targeted attacks for practitioners. The Tokyo venue alone draws cumulative session attendance of around 16,000.
pmconf 2026 (Product Manager Conference)
Japan's largest product management conference. It contributes to the advancement of product management through knowledge sharing and case study presentations by PMs and PdMs. In 2025, held in Osaka (November) and Tokyo (December). The 2026 edition runs in three cities, Fukuoka (October 23), Osaka (December 11), and Tokyo (December 17-18), with Tokyo spanning Day 1 sessions and a Day 2 open space (OST) and hackathon. Top PMs from Japan and abroad take the stage.
Vue Fes Japan 2026
Japan's largest Vue.js conference, organized by the Vue.js Japan User Group. With a scope that "does not close itself to Vue.js alone," it covers Vite, Vitest, AI, and accessibility, featuring creator Evan You and OSS developers from around the world. Over 800 people attended in 2025; the 2026 edition takes place October 24 in Otemachi, Tokyo.
16th International Cybersecurity Symposium
A four-day international symposium co-hosted by Keio University KGRI with INCS-CoE, MITRE and the Sasakawa Peace Foundation, spanning national, economic and societal security. Its distinguishing feature is a speaker roster of Japanese cabinet-level officials alongside ambassador-level representatives and UN officials, debating multilateral public-private cooperation around AI and quantum technology. Free and held in person, it is a rare venue for government-level sessions at this scale.
Qiita Conference 2026 Autumn
The autumn edition of the online tech conference hosted by Qiita, Japan's largest engineer community. Streamed over three evenings (from 17:00, ending at 20:50 on Days 1-2 and 20:15 on Day 3), it features guest keynotes and sessions by participating companies sharing technical challenges and insights. The spring 2026 edition drew a record 7,000+ registrations, the largest in Qiita's history. Archive streaming available.
FlutterKaigi 2026
Japan's largest community conference dedicated to Flutter and Dart. The sixth edition since its 2021 debut runs two days in Hamamatsucho under the theme "Assemble." The 2025 edition drew roughly 300 attendees with a keynote, 20 sessions, and 15 lightning talks, cementing its role as the annual gathering of Japan's Flutter community.
ISUCON2026
A team-based contest in which participants tune a given web application for speed within a fixed time limit. The name stands for "Iikanjini Speedup Contest"; 14 editions have been held since the first in 2011. 2026 is the first year under a new structure, with Sakura Internet taking over the operations desk from LY Corporation, run as an online and offline hybrid with 935 slots opened in three waves.
KomeKaigi 2026
An IT conference built around Niigata's rice and sake culture. Launched in 2025 as the "New Rice Conference," it drew 98 attendees including many from outside the prefecture. The 2026 theme is "Omusubi Conference." Its single-track format and the local touch of handing out rice to attendees mark it as a new model for regional conferences.
Tokyo Game Dungeon 14
The 14th edition of the indie game exhibition for solo developers and small teams. Held three to four times a year in Hamamatsucho since its 2022 launch, this edition hosts 340 exhibitors (18 corporate, 322 general) across two floors of the Industrial Trade Center. Its first-come exhibitor registration and low booth fees keep the developer-first spirit intact, making it a fixture for playtesting and creator networking.
TSKaigi Sendai 2026
A regional edition of the TypeScript conference organized by the TSKaigi Association. Separate from the flagship Tokyo event held each May, these regional gatherings connect with local engineering communities. The Sendai edition runs as a single day on November 1, 2026, offering practical TypeScript knowledge and networking.
Unreal Fest Tokyo 2026
Epic Games Japan's official large-scale Unreal Engine conference, combining talks, exhibits, and hands-on access to the latest technology. Sessions cover game development alongside film, architecture, automotive, and other industries, all free to attend. Established since its 2014 debut, the previous edition drew a record 1,800 attendees. The 2026 edition runs two days at Tokyo Big Sight TFT Hall in Ariake, with a livestream for satellite venues across Japan.
DX Comprehensive EXPO 2026 Autumn Tokyo
The autumn edition of a comprehensive exhibition gathering DX solutions for operational efficiency, work style reform, and business infrastructure. Seven constituent shows cover HR and labor, accounting and finance, legal, marketing, sales, business process reform, and information security, letting visitors compare products across domains. It is the third Tokyo-area edition of 2026, following the spring show in February and the summer show in July.
db tech showcase 2026
One of Japan's largest database technology conferences, running since 2011 under the banner of covering both the public and hidden sides of database technology, and drawing over 1,000 registrations every year since 2014. The 2026 edition runs fully offline on the theme "DB First, AI Next" with 86 sessions across four tracks, longer 40-minute slots and a new community track.
SKS JAPAN 2026
Japan's largest foodtech conference, co-hosted by UnlocX and the US foodtech media The Spoon. Corporations, startups, investors, and researchers in food and agriculture gather from Japan and abroad, with over 100 speakers and full simultaneous interpretation. Now entering its second stage focused on co-creation and social implementation after nearly a decade since 2017. The 2026 edition runs as a hybrid on-site and online event at Muromachi Mitsui Hall & Conference in Nihonbashi, with an accompanying citywide exhibition.
design surf seminar 2026
A free seminar for designers that Too, a creative equipment distributor, has held every autumn since 2016. The eleventh edition takes "crossing boundaries" as its 2026 theme, with in-house designers from Toyota, Calbee and Canon speaking for themselves. Rather than centering on tools, it builds the programme around practitioners who expanded their scope beyond their original job function.
JAWS FESTA 2026 in AKITA
The annual traveling conference that JAWS-UG, the AWS user group of Japan, holds once a year in a regional city outside Tokyo. The 2026 edition takes place at Akita Arts Theatre Milhas in Akita City, lining up regional cloud case studies and community-driven sessions. The 2025 Kanazawa edition drew roughly 300 registrants, with strongly local programming such as disaster-relief lessons from the Noto Peninsula earthquake. It functions as a hub connecting regional IT communities.
DigiGame Expo 2026
A doujin and indie-game-only exhibition and market running since 2013, held every autumn at Akihabara UDX. Games across PC, smartphone, and console platforms are sold and demoed in one place. Distinctively, game engines and middleware vendors have been welcomed from the start, and media attendance is high. A long-running event bridging doujin market culture and the indie game industry.
B Dash Camp 2026 Fall in Fukuoka
The fall edition of Japan's premier invitation-only startup conference. Entrepreneurs, public company executives, and VCs gather in Fukuoka for dense networking built around panel discussions and the Pitch Arena pitch contest. Held twice a year, paired with the spring edition in Sapporo.
NexTech Week 2026 Autumn
A large-scale advanced-technology exhibition organized by RX Japan, comprising five shows including AI EXPO, Blockchain EXPO, Quantum Computing EXPO, Humanoid Robot EXPO, and Digital Talent Development EXPO. Centered on the social implementation of frontier technology, it gathers companies from R&D through deployment as a free-entry, business-matching exhibition held each spring and autumn.
Agile Japan 2026
One of Japan's largest agile conferences, drawing practitioners from across industries and job functions. The 2026 theme, "Agile Paradox," revisits what the acceleration driven by AI changes in agile development and organizations, and what role people should still hold. Runs two days as a hybrid of on-site and online participation.
Kansai Open Forum 2026
The largest open source community event in the Kansai region, running since 2002. A volunteer executive committee keeps the barrier low with free admission and no attendee registration. The two-day structure devotes day one to an invited keynote and an evening reception, day two to user-organized seminars, stage talks and booth exhibits. Its scope has widened beyond software, extending the idea of "open" to open hardware and open data.
Scrum Fest Sapporo 2026
A scrum and agile conference from Hokkaido hosted by Agile Sapporo. After running as Scrum Fest Niseko, a small overnight retreat, in 2023 and 2024, the 2026 edition returns to its Sapporo roots after a two-year gap in a session-based format with an online track. The programme runs two keynote slots — a panel discussion with three executives from Classmethod, Creationline, and KDDI Agile Development Center, and an invited talk by a Memuro town official who maintains the OSS project MADO.
CEDEC+KYUSHU 2026
One of Kyushu's largest conferences for game developers, co-hosted with CESA at Kyushu Sangyo University in Fukuoka. A single day packs practical technical talks, an indie game showcase, and hands-on content demos. Time-shifted streaming, offered since 2020, reaches audiences nationwide, and the previous edition drew over 3,000 registrations, an exceptional scale for a regional event.
Design Matters 26
The Tokyo edition of the Copenhagen-born digital design conference, renamed to the numbered form "Design Matters 26" from 2026. Held over two days at DMM.com's seminar space in Roppongi, run entirely in English at an intimate 200-person scale, with practitioners from Figma, Miro and Medium speaking across four curated themes. Inclusivity runs through the program, and its draw is the density of direct access to speakers.
Hokuriku RubyKaigi 02
A regional Ruby conference run jointly by the Ruby communities of Toyama, Ishikawa and Fukui prefectures. It picks an unusual venue, a seminar room inside the Fukui Prefectural Dinosaur Museum, and keeps the format small with a half-day program, free to attend, bringing Hokuriku Rubyists together under the theme "Discovery". Organized by Toyama.rb, Kanazawa.rb and fukui.rb.
Kotlin Fest 2026
A Kotlin-focused community conference under the banner "cherishing Kotlin," hosted by the Japan Kotlin User Group. Kotlin engineers share knowledge across Android and server-side in CfP-selected sessions. Running since its 2018 debut, it is the central event of Japan's Kotlin ecosystem.
PHP Conference Niigata 2026
The second edition of Niigata's regional PHP conference, themed "Savour it in Niigata, connect, create, toward the next future." It plans 25 sessions across two tracks for an expected 200 attendees. Having moved from Kaishi Professional University to Toki Messe, it shows a Shinetsu engineering community scaling up under its own steam.
CODE BLUE 2026
An international security conference born in Japan that gathers world-class security researchers in Tokyo. Talks on cutting-edge vulnerability research and attack techniques are fully interpreted, drawing 1,000+ attendees from Japan and abroad. Alongside the main conference, trainings, contests, and villages make it a hub for exchange across borders and languages.
Unite Tokyo 2026
The Japanese edition of Unity Technologies' annual conference for game developers, returning after a seven-year absence since 2019. That last edition drew roughly 5,000 attendees over two days, making it among Japan's largest Unity gatherings and a concentrated venue for engine updates and studio development case studies. The venue is Bellesalle Shibuya Garden, with four ticket tiers on sale and early-bird pricing running through September 30.
CloudNative Days Winter 2026
Japan's largest cloud-native technology conference hosted by the local community. Shares practical cases on Kubernetes, containers, microservices, SRE, and Platform Engineering. Community-driven with diverse sessions selected through a CFP (Call for Proposals) process.
Internet Week 2026
A comprehensive event on Internet infrastructure technology hosted by JPNIC. Running since 1997, it gathers the engineers who keep routing, DNS, and security infrastructure working, across disciplines. Programs range from tutorials to trend seminars; the 2025 edition drew a cumulative 3,900+ participants. The 2026 edition runs November 19-27, split into an Online Week and a Conference Week (November 25-27 in Ryogoku, Tokyo).
ResorTech EXPO 2026 in Okinawa
Okinawa's largest IT and DX trade show, built on the pairing of resort and technology. It combines exhibitions, seminars and business matching to push DX among local companies and generate business at home and abroad. Exhibitors come from Taiwan, Hong Kong, South Korea and Vietnam among others, and the previous edition drew over 20,000 visitors and 284 exhibitors. Admission is free.
NIKKEI NADA Digital Asset Conference 2026
A digital asset conference co-hosted by Nikkei's media business division and N.Avenue. It expands and renames the Digital Securities Forum, held for five years with the Financial Services Agency's endorsement, to mark Nikkei's 150th anniversary. Under the theme of the next common sense of capital markets, regulators, financial institutions, and blockchain companies discuss policy design and market implementation across stablecoins, tokenized deposits, RWA, and crypto ETFs. Free with advance registration.
Accessibility Conference Fukuoka 2026
A rare single-theme regional conference devoted to web accessibility and inclusive design. It has drawn more than 500 registrants every year since its 2023 debut. Admission is free and the event streams both a standard and an access-supported feed on YouTube, so the operation itself embodies its subject. It incorporated as a general incorporated association in August 2025.
AVTOKYO2026
A community security conference running since 2008 under the motto "no drink, no hack." Held in a Shibuya nightclub, it is known for its unique style where hackers from Japan and abroad mingle over drinks. Talks center on edgy topics from cloud attack techniques to OSINT and physical security, and the event has carved out its own place broadcasting Japan's hacker culture to the world. The 2026 edition runs for a half day on November 21.
Kobe Game Labyrinth 2026
Kobe's only indie game showcase, where visitors freely play unreleased titles and talk directly with the developers. It takes place at Kobe Denshi College's student hall on the same day as the school festival. The previous edition drew 54 exhibited works and roughly 400 visitors. Admission and exhibiting are both free, and a booth category for high school clubs has been added.
Open Source Conference 2026 Nagaoka
The Nagaoka stop on the nationwide Open Source Conference circuit. This marks the twentieth year the event has run in Niigata Prefecture, moving from Niigata City to Nagaoka for 2026. A free one-day event of community and corporate exhibits plus seminars, it has long served as a meeting point for the region's open-source practitioners.
Sendai RubyKaigi 03
A regional Ruby conference returning to Sendai after a 16-year gap. Under the theme "rubyist.send(:❤️)", it aims to share the fun of Ruby with longtime Rubyists and with people who have yet to try the language. The venue is a small theater in central Sendai called Daremo Shiranai Gekijo, with Mayumi Emori and Kyosuke Morohashi as special speakers, in a half-day in-person program for Rubyists across the Tohoku region.
JSConf JP 2026
The Japanese edition of the worldwide JSConf family, organized by the Japan Node.js Association and among the largest JavaScript conferences in the country. Succeeding the Tokyo NodeFest since 2019, it is known for bringing in international speakers, from language spec designers to runtime developers, across four dense parallel tracks, serving as the junction between Japan's community and global JavaScript trends. The 2026 edition moves to Bellesalle Kanda.
Open Source Conference 2026 Yamaguchi
The Yamaguchi stop on the nationwide Open Source Conference circuit, first held in 2022 and now in its fifth year. It stands out for its many student and local university speakers, and for a now-traditional ant research exhibit in which a visiting University of the Ryukyus researcher shows live ants. A free one-day event of seminars and exhibits at the Tokiwa Industrial Hall in Ube, it serves as a meeting point for open-source practitioners in the Chugoku region.
Marketing Agenda Tokyo 2026
A screened-admission conference gathering marketing leaders from brand-side companies. Brands attend free while solution providers pay, an asymmetric design meant to protect the quality of discussion. It is the urban counterpart to the Okinawa retreat edition, themed "The Evolution of the Marketer" in 2026.
Tohoku Cybersecurity Symposium 2026
A cybersecurity symposium launching in 2026 in Tohoku, built on industry-government-academia cooperation. Organized by the Tohoku Cybersecurity Symposium Executive Committee and IPA, co-hosted by METI. Over two days it pairs management-track talks for executives with engineering-track talks for practitioners, adding a night session and a co-located tabletop exercise.
Architecture Conference 2026
A large-scale conference dedicated to software architecture, hosted by Findy. Under the theme "architecture decisions, technology, and organizations that sustain business continuity and evolution," it shares case studies from three angles of strategy, implementation, and organization. In 2026, Martin Fowler, author of Refactoring, is scheduled to speak in Japan. The 2025 edition drew 5,549 registrations over two days.
BITCOIN JAPAN 2026
A two-day Bitcoin-focused event hosted by ANAP Holdings, listed on the TSE Standard market. Day one is a business summit; day two splits into an expo for Bitcoiners and a festival open to the general public. Food stalls and hands-on programming sit alongside the sessions, reflecting a stated aim of shifting Bitcoin from something to be understood to something to be experienced.
Business Technology Conference Japan 2026
A conference born out of a Slack community for corporate IT staff. Now in its fourth edition, the 2026 event rallies under the banner "IT ops is fun!" and devotes two days to practitioners solving frontline problems across data, AI, SaaS and security. Online attendance is free and on-site tickets start at ¥1,500, reflecting its aim of recasting corporate IT as a driver of organizational change.
Data + AI World Tour Tokyo 2026
The Tokyo stop of the one-day conference that Databricks runs in 20 cities worldwide, a tour billed at over 40,000 attendees and 800 sponsors in total. Sessions cover lakehouse and AI agent implementation through customer case studies. At the previous Tokyo edition, session queues ran long and the content skewed practical, from consolidating data platforms to concrete RAG implementation steps. The 2026 edition returns to The Prince Park Tower Tokyo, the same venue as last year.
PostgreSQL Conference Japan 2026
Japan's largest comprehensive PostgreSQL conference, held annually by the Japan PostgreSQL Users Group (JPUG). Developers and DBAs gather for a full day of two morning talks and fourteen sessions across three afternoon tracks, spanning new core features, cloud, extensions, and operations. The 2025 edition drew 226 attendees, the most in eight years, with committers and vendor engineers from Japan and abroad on stage.
Scrum Fest Okinawa 2026
An Okinawan agile community event launched in 2022 as part of the nationwide Scrum Fest family. The 2026 edition takes as its theme the questions AI cannot answer, structuring the programme around attendees talking them through together. Smaller and more informal than its sibling events, it offers discounted tickets for Okinawa residents and free student admission.
WE AT CHALLENGE 2026
A global pitch contest and summit in the well-being domain hosted by WE AT, in partnership with the University of Tokyo, Hakuhodo, and others. Winners receive non-equity funding from a prize pool exceeding 40 million yen. The previous edition drew about 600 entries from 40 countries. This is a pitch contest plus summit rather than a general-admission conference. Entries are accepted in Japanese or English (English required by the final round).
YAPC::Tokyo 2026
A conference for IT engineers centered on Perl, hosted by the Japan Perl Association. Marking the 10th anniversary of the touring YAPC::Japan series launched in 2016, the 2026 edition takes place at Tokyo Big Sight under the theme "Patchwork." Talks go well beyond Perl, and the event is known for dense community exchange from the pre-party to the after-party. The 2024 Hiroshima edition drew a series-record 448 attendees.
Indie Developers Conference 2026
A talk-driven conference aimed squarely at solo and small-team indie game developers. Unlike showcase-style events, it covers marketing, publishing, and post-release operations alongside development technique. The previous edition featured room6, PLAYISM, Epic Games, and ID@Xbox. An archive-only pass is also offered.
Innovation Leaders Summit 2026 (ILS)
One of Asia's largest open innovation matchmaking events, run by Project Nippon. At its core is an invitation-based matching program where over 110 major corporations meet more than 700 VC-recommended startups and university labs from 26 countries, generating over 2,000 business meetings. Strong deep tech focus across semiconductors, decarbonization, materials, robotics, and bio. Different in nature from general-admission conferences where anyone can buy a ticket. The 2024 edition set a record with 24,239 combined visitors and viewers. The 2026 edition runs November 30 to December 3 at Toranomon Hills Mori Tower.
XR Kaigi 2026
Japan's largest conference covering XR, metaverse and VTuber technologies. Launched in 2019 by Mogura, publisher of the trade media Mogura VR, the 2026 edition gathers roughly 70 sessions and about 100 exhibition booths at Tokyo Port City Takeshiba. Hands-on hardware demos sit alongside enterprise deployment cases, making it the industry's annual checkpoint.
GTMF 2026 (Game Tools & Middleware Forum)
An exhibition-and-seminar event specializing in tools and middleware for game development, run by IID across two venues, Osaka (Dec 2) and Tokyo (Dec 8). Vendors of engines, sound, QA, and AI solutions gather so that engineers and creators can compare the latest development environments for free. Its 2026 edition is the 21st, making it one of Japan's leading developer-focused events.
Okinawa Open Days 2026
The 14th edition of the general ICT conference held every December in Naha since 2013, built around research presentations from the Okinawa Open Laboratory. A single venue spans networking, cloud, edge, generative AI operations, security and robotics, combining keynotes, poster sessions and sponsor booths with a hands-on program in which early-career engineers build the venue network themselves. The 2024 edition passed 1,000 attendees for the first time in several years.
RubyWorld Conference 2026
A business-oriented Ruby conference held in Matsue, the birthplace of Ruby. Anchored by a keynote from Yukihiro Matsumoto (Matz), it showcases business use cases of Ruby and the latest developments in the ecosystem. A major Ruby event alongside RubyKaigi.
Kernel/VM Expedition Hokuriku Part 9
The ninth Hokuriku edition of a study group devoted to low-level technology such as kernels, virtualization and hardware. Held at Omicho Ichiba-kan in Kanazawa, it trades scale for density with just 35 in-person seats. Its stated policy imposes no genre restrictions, bringing OS developers, competitive programmers and security researchers into one room to share talks. Admission is free, with a parallel online stream.
Open Source Conference 2026 Okinawa
The Okinawa edition of OSC, a touring series begun in 2004. It places communities and companies side by side across seminars and exhibition booths, serving as a gathering point for engineers in the region. Together with Okinawa Open Days, held at the same venue just beforehand, it makes early December the season for technical events in Okinawa, drawing attendees from outside the prefecture.
Security Camp 2026 Mini (Hiroshima) Specialist Course
A selective, students-only course for those aged 25 and under, held by the Security Camp Council and HiBiS at Hiroshima City University's satellite campus. Capped at 20 participants, it packs one day with professional ethics from the Hiroshima Prefectural Police cybercrime division, a lecture on building a TCP/IP protocol stack from scratch, and a log investigation exercise from NRI Secure. By design it gives priority to applicants from the Chugoku region as a stepping stone to the national camp.
Healthtech Summit 2026
A conference on digital technology in medicine and healthcare, running since 2020. Researchers, hospital executives and policymakers present alongside a healthcare startup pitch contest. The 2026 edition is the 12th, themed "Who Leads Care?" It began as Healthtech/SUM, co-hosted by Nikkei and MedPeer, and took its current name in 2024.
Open Source Summit Japan 2026
Japan's premier open source conference, organized by the Linux Foundation. Tracks span the Linux kernel, cloud native, and open source AI, offering direct access to maintainers and community leaders from around the world. Linus Torvalds delivered a 2025 keynote; the 2026 edition is co-located with ELC Asia and the Automotive Linux Summit.
Kumamoto Cybersecurity Symposium 2026
The fifth edition of this symposium, held at Kumamoto-jo Hall by the Kumamoto Information Service Industry Association with Google's cooperation. It casts a deliberately wide net, from executives to law enforcement, lawyers and the general public, explicitly including operators of economically critical infrastructure. Speakers from Nikkei, IPA and Ritsumeikan University appear while admission stays free, making it a regional Kyushu venue that treats policy and practice together.
Open Source Conference 2026 Fukuoka
The Fukuoka stop of Open Source Conference, set for 12 December 2026 on the 7th floor of Fukuoka University's Building A, where Kyushu's open source communities and companies gather for exhibits and seminars. The previous edition at Kyushu Sangyo University ran 25 sessions across four tracks with 29 booths and featured exhibits such as a robot arm from a municipal DX consortium. The venue rotates among universities in the city.
TechGALA Japan 2026: BEYOND
The third edition of TechGALA, a technology and startup festival held across the city of Nagoya. The schedule moves from the traditional January-February window to December, making 2026 an exceptional year with two editions (January and December). Days 1-2 take place in the Sakae district (Chunichi Building, NADYA PARK, and more) and Day 3 in the Tsurumai district (STATION Ai and more). The theme is BEYOND, going beyond existing frameworks.
Startup JAPAN EXPO 2026 Winter
The second edition within the same year of the startup exhibition organized by Eight, Sansan's business-card app. Following the April Makuhari edition, it moves to Ariake GYM-EX. Startups meet large corporations, investors, municipalities, and media through Dream Pitch, conferences, and themed networking sessions. Its shift to a twice-a-year cadence reflects growing demand for domestic startup exhibitions.
Osaka Game Dungeon 2
The Osaka edition of Tokyo Game Dungeon, launched in late 2025 as a hands-on showcase for self-made digital games. It is open to individuals, students, doujin circles, and small teams, allocating booths first-come rather than by jury. The second edition expands to 1.9 times the floor area and 160 booths. Under-18s enter free all day, and admission is free after 16:00.
Regional Scrum Gathering Tokyo 2027
Japan's largest Scrum and Agile conference, held every January since 2011. The 2027 edition returns to Bellesalle Haneda Airport in hybrid format. Beyond 90+ sessions including international keynotes, its "gathering" culture emphasizing attendee dialogue sets it apart, and tickets sell out early every year. A fixed point where product development leaders and practitioners convene at the start of the year.
BuriKaigi 2027
Hokuriku's largest IT conference, timed to Toyama's winter delicacy, kanburi (winter yellowtail). It began in 2015 as a joint .NET and Java meetup and has grown into a multi-track event of 300+ attendees covering everything from web to AI. Admission is free, and engineers travel from across Japan, drawn in part by the buri-shabu banquet. The 2027 edition runs January 8-9 at the Toyama International Conference Center.
PHP Conference Kansai 2026
A regional conference rooted in the Kansai PHP Users Group, where PHP engineers across the Kansai region share technology and hands-on experience. Following Osaka in 2024 and Kobe in 2025, this edition moves to Kyoto, rotating among the region's cities to widen participation. Themed "The next starts here," it puts weight on an in-person venue where knowledge and people meet as generative AI changes how engineers work. Although named the 2026 edition, it takes place in January 2027.
JSAC2027
A conference for security analysts hosted by JPCERT/CC, where frontline malware analysts, forensic investigators, and incident responders from Japan and abroad share hands-on findings. Launched in 2018, it marks its 10th anniversary in 2027. The event stays strictly in-person with no online streaming, and it is free to attend but capacity-limited, so early registration matters.
JANOG59 Meeting in Fukui
Japan's largest network operators' meeting, held twice a year by JANOG since 1997. Engineers from ISPs, data centers, and carriers gather to discuss real-world operational issues candidly. The 2026 Osaka edition drew over 6,000 registrants. The 59th meeting runs for three days in Fukui City, hosted by NTT Docomo Business and Mitene Internet.
Open Source Conference 2027 Osaka
The Osaka stop on the nationwide Open Source Conference circuit. The 2027 edition returns to floors 3 and 4 of the Osaka Sangyo Sozokan, the same venue as last time, for a single day of seminars on the latest in open source plus exhibits by communities, companies and organizations. Admission is free, and it brings together open-source practitioners, students and corporate engineers from across the Kansai region.
Spectrum Tokyo Festival 2027
A two-day "music-festival-like" design festival hosted by the design community Spectrum Tokyo. The 2027 theme is "Edge," a stand against the flattening of design in an era where AI endlessly generates the average, celebrating uncompromising worldviews and impulses that resist verbalization. Once again held at the DMM.com offices in Roppongi, with simultaneous Japanese-English interpretation and archive access to every talk.
Cyber Security Symposium in Dogo 2027
A regionally rooted security symposium held each February in Matsuyama, Ehime during Japan's Cybersecurity Month. One of the country's hot-spring symposiums alongside Shirahama, Yuzawa, and Atami, it brings public and private practitioners together for two days of talks and discussion. The Shikoku Bureau of Telecommunications co-hosts, and developing regional security talent is a stated aim.
Developers Summit 2027
A festival for IT engineers running since 2003, hosted by Shoeisha's CodeZine. It has established itself as a community-driven venue where working engineers learn about technology and careers together, kept free for attendees thanks to paid sponsors, with front-line practitioners such as Yukihiro Matsumoto and Takuto Wada speaking most years. The 2027 edition runs three days, February 17-19, in Tokyo.
SECCON 15 Dennou Kaigi
Japan's largest security contest series, run by JNSA since 2012. The Dennou Kaigi conference opens the CTF finals, fought by domestic and international teams that survived the online qualifiers, to the public alongside talks, workshops, and CTF for GIRLS. The 15th edition takes place in Asakusabashi, Tokyo on February 20-21, 2027 with free admission, serving as a key venue for discovering hands-on security talent among companies and students alike.
SRE Kaigi 2027
The third edition of a community conference where practitioners bring together knowledge and experience in Site Reliability Engineering. Themed "Evolve SRE !", it examines how the discipline itself evolves in a period of rapid change. One of Japan's two main SRE conferences alongside SRE NEXT, it runs primarily offline with some sessions streamed, and builds its programme through an open call for proposals.
Tokyo Game Dungeon 15
An exhibition of indie games made by individuals and small teams in Japan. It accepts applications first-come-first-served with no jury screening, offering an affordable exhibitor fee and well-equipped booths. The organizer is himself a solo developer and keeps the event a gathering of game-making peers rather than a business matchmaking floor. Held several times a year, it sets aside around 300 exhibitor slots.
Japan Fintech Week 2027
A fintech festival week co-hosted by the Financial Services Agency and the Fintech Association of Japan. Dozens of affiliated events, including FIN/SUM and GFTN Forum, run for about two weeks mainly across Tokyo. The 2025 edition drew over 20,000 cumulative participants from 70+ countries and regions across 82 events. Its hallmark is the close dialogue among regulators, startups, and financial institutions, showcasing Japanese fintech to the world.
ICC SUMMIT FUKUOKA 2027
An invitation-only executive conference built on the principle of learning together and creating industries together. Its signature content is Catapult, a seven-minute pitch contest, with sessions running across up to eight rooms from morning to night. This is the spring Fukuoka edition of the twice-yearly series; participants spend all three days with the same cohort, which makes relationship building unusually dense. A volunteer team of younger staff runs the event.
Engineering Management Conference Japan 2027
A community-run conference dedicated to practitioners of engineering management. Engineers aspiring to become EMs, seasoned engineering managers and executives gather under the themes of "amplification" and "catalyst" to share insight and challenges. The third edition focuses on "transformation" in the role and expected outcomes of managers, at a time when the value of management itself is being questioned.
try! Swift Tokyo 2027
An international conference gathering Apple platform developers from around the world. First held in 2016, sessions run mostly in English with real-time translation via the official app lowering the language barrier. The previous edition drew 631 attendees from over 35 countries. Across one workshop day and two conference days, it offers cutting-edge Swift content and global community exchange.
Game Creators Conference '27
A Kansai-born conference for game developers, hosted in Osaka by the Digital Entertainment Creators Association (DECA). Combining talks, exhibitor booths, and a networking reception, it serves as a hub for the Kansai developer community in an industry calendar otherwise concentrated in Tokyo. The 2027 edition takes place at Grand Cube Osaka under the theme of connection driving the next wave of creation.
PHPerKaigi 2027
A tech conference styled as a "festival by PHPers, for PHPers." Since its 2018 debut it has built a devoted following through its emphasis on attendee interaction — code battles, unconferences, and hallway conversations alongside talks. The 2027 edition again runs three days over the March holiday weekend, March 20-22. Venue and tickets are unannounced.
TEAMZ SUMMIT 2027 AI Edition
The 10th anniversary edition of one of Japan's largest Web3 and AI conferences. Entrepreneurs, investors, and developers from over 80 countries gather in Tokyo to discuss the frontiers of blockchain, AI, and crypto assets. Held at the historic Japanese garden of Happo-en, it is known for its internationally diverse networking, complemented by a VIP dinner and a closing red carpet gala.
Japan IT Week Spring 2027
The spring edition of Japan's largest IT and DX trade show. In 2027 it runs alongside Japan DX & AX Week, Sales & Digital Marketing Week, and EC & Store Week, with about 1,100 exhibitors filling East Halls 1-8 of Tokyo Big Sight and an expected 57,000 visitors. It serves as a venue for comparing IT products and holding business talks, covering everything from systems development and security to AI.
RubyKaigi 2027
One of the world's largest international conferences dedicated to the Ruby language. Ruby creator Yukihiro Matsumoto (Matz), the core team, and developers from around the globe gather for deep technical talks on language internals, implementations, and performance. Following its tradition of touring Japan, the 2027 edition heads to Miyazaki.
AI Expo Spring 2027
The spring edition of one of Japan's largest AI-focused exhibitions, organized by AIsmiley, operator of an AI portal media. It gathers the latest AI products and services, from generative AI and image recognition to physical AI robots. Spring 2026 drew 12,154 visitors and added a physical AI and robot zone. The 2027 edition runs April 27-28 at Tokyo International Forum, serving corporate teams evaluating AI adoption.
Tokyo Game Dungeon 16
An exhibition of indie games made by individuals and small teams in Japan. It accepts applications first-come-first-served with no jury screening, offering an affordable exhibitor fee and well-equipped booths. The organizer is himself a solo developer and keeps the event a gathering of game-making peers rather than a business matchmaking floor. It runs several times a year from its base in Hamamatsucho, Tokyo.
SusHi Tech Tokyo 2027
Asia's largest global innovation conference, hosted by the Tokyo Metropolitan Government. Startups, large corporations, investors, and city mayors from around the world gather to debate a sustainable future and generate business deals, across two Business Days and one Public Day. The 2026 edition drew roughly 61,000 people from 103 countries and regions, with 798 exhibiting startups. The 2027 edition runs May 20-22 at Tokyo Big Sight.
BitSummit 2027
Japan's largest indie game festival, held annually at Miyako Messe in Kyoto. The 2026 edition ("BitSummit PUNCH") set a record with 68,208 visitors and 496 booths over three days. Built around hands-on demos where developers from Japan and abroad let visitors play their new titles directly, it also serves as a meeting point with publishers and international media. The 2027 dates (May 21-23) were announced at the closing ceremony.
Interop Tokyo 2027
One of Japan's largest network and infrastructure technology events, running since 1994. Its hallmark is ShowNet, a live interoperability demonstration network built from scratch on the show floor by hundreds of top engineers using over 2,000 products contributed by exhibitors, letting visitors see the latest networking, AI infrastructure, and security technology on real hardware. The 2026 edition drew over 140,000 visitors across three days.
SRE NEXT 2027
Japan's largest conference dedicated to Site Reliability Engineering, born out of the SRE Lounge community in 2020. The 2026 edition ran two days under the theme "Inclusive SRE," and the 2027 edition is set for July 9-10 at TOC Ariake. It serves as the Japanese SRE scene's annual checkpoint where reliability practices are shared across company boundaries.
CEDEC 2027
Japan's largest technical conference for game developers, organized by CESA. Around 200 sessions run over three days across fields including engineering, visual arts, sound, game design and academic research. It exists so implementation knowledge crosses company boundaries, and it has raised the technical baseline of Japanese computer entertainment development for over two decades. The 2027 edition is again a hybrid of PACIFICO Yokohama North and online.
Google Cloud Next Tokyo 2027
Japan's largest cloud conference covering the latest Google Cloud and Workspace technologies and domestic case studies. Keynotes, technical sessions, and hands-on labs are free to attend, and the event has become a key venue for production-grade AI agent stories. The 2027 edition moves to Tokyo Big Sight's West Exhibition Halls 1-3 in August.
WebX 2027
The fifth edition of Asia's largest Web3 conference, produced by CoinPost. The 2026 edition drew 13,641 attendees from over 90 countries with 70+ side events across Tokyo. In 2027 the venue moves from The Prince Park Tower Tokyo to Tokyo Big Sight, a space roughly 1.8 times larger, as the event keeps scaling as an international gathering of crypto and blockchain companies, financial institutions, investors, and government officials.
NoMaps 2027
A city-wide festival across central Sapporo spanning conferences, exhibitions, music, and film. Modeled after SXSW and launched in 2016, the 2025 edition drew a cumulative 58,000 participants across 86 venues and 294 programs. A hub event of Hokkaido's startup ecosystem where entrepreneurs, creators, students, and local governments mix.
Tokyo Game Show 2027
Japan's largest game trade show, organized by CESA. Business days open the run and public days close it, as developers and publishers from Japan and abroad unveil new titles together. The 30th-anniversary 2026 edition expanded to five days for the first time, but a typhoon cancelled the final day, leaving 257,000 visitors across four. The 2027 edition returns to a five-day run on September 16-20.
PyCon JP 2027
Japan's largest conference dedicated to the Python programming language. Python developers from Japan and abroad gather to share knowledge across web development, data science, machine learning, and automation. Since its first edition in 2011, the event has drawn around 1,000 attendees annually. After two years in Hiroshima, the 2027 edition moves to Plaza Verde in Numazu, Shizuoka. Tickets and the call for proposals are both coming soon.
Past events
Hackers Champloo 2026
An annual engineers' festival run jointly by Okinawa's IT communities since 2013. Built around sessions and lightning talks, its hallmark is a "champloo" (stir-fry) culture where engineers from inside and outside the prefecture mix across specialties. The 2025 edition drew about 140 attendees, free to attend, with even sponsor sessions kept as pure tech talks. In 2026 it shifts from its usual summer slot to October 12 at Tedako Hall in Urasoe.
Frontend Conference Kansai 2026
An annual conference by the Kansai front-end developer community. The 2026 theme "Frontend, Unbounded." widens the audience beyond engineers to UI/UX designers and product roles. Organized by the Kansai Developers Conference association, it is held at the new Grand Green Osaka venue directly linked to Osaka Station, anchoring developer exchange in the Kansai region.
TinyGo Conference 2026 in JAPAN
The second edition of Japan's conference dedicated to TinyGo, the Go compiler targeting embedded systems and WebAssembly. Co-hosted by Gophers Japan, it pairs talks with a hands-on workshop soldering a custom name-badge PCB, alongside exhibitor booths. With 70 in-person seats and free admission, it works as a small venue where a language community meets hardware-oriented engineering.
Designship 2026
Japan's largest design conference, built on the concept of "reconnecting design that has spread too far." Held annually since 2018 around the stories of practitioners crossing UI/UX, graphic, and product design, it has drawn over 50,000 cumulative attendees, with about 2,500 visitors over two days in 2025. The 2026 edition takes place at Tokyo Midtown Hall on October 10-11.
Information Security Workshop in Echigo-Yuzawa 2026
One of Japan's oldest residential security workshops, held at the Echigo-Yuzawa hot-spring resort since 1998. It centers on small-group "kuruma-za" discussions rather than lectures, with debate across industry, government and academia running deep into the night. The 2026 edition takes self-help, mutual aid and public assistance as its theme on October 9-10. Registration has already closed at capacity.
Sapporo Game Camp 2026
Hokkaido's largest game development event, run jointly by Sapporo-based studios. Three days combine a two-day game jam, programming and 3DCG courses for school students, talk sessions with working developers, and company booths. Twenty-one studios cooperate, led by Sega Sapporo Studio and joined by the City of Sapporo, with 4,400 cumulative participants to date.
Data Engineering Summit 2026
A data engineering-focused conference hosted by Findy. Shares practical cases on data infrastructure, data pipelines, MLOps, and data governance. Data engineers from major domestic tech companies present real-world insights from the field.
RAMEN TECH 2026
A citywide innovation week hosted by Fukuoka City. Centered on the Tenjin-Daimyo area, it spreads 100+ events across the city, drawing startups, investors, and engineers from Japan and abroad. The 2025 edition drew over 12,000 participants (1,200+ from overseas). In 2026 it runs five days, October 7-11, targeting 15,000+ participants, offering a panoramic view of the ecosystem of Fukuoka, Japan's self-styled gateway to Asia.
BioJapan 2026
One of Asia's largest biotechnology partnering events. Pharma and biotech companies, regenerative medicine and healthcare players, researchers, investors, and startups gather for one-on-one partnering meetings via a dedicated system. In 2025, 1,090 exhibitors from 36 countries and regions joined, with over 22,000 visitors and 24,000 partnering meetings. Co-located with events such as Regenerative Medicine JAPAN.
Hardening 2026 Agentic Collapse
An annual security hardening competition where teams defend an e-commerce site under live attack, competing on business continuity and sales. Japan's foremost hands-on exercise since 2012, with selected participants forming mixed teams. In 2025, 101 took part, 90% first-timers. The 2026 edition moves to Hakodate under the theme "Agentic Collapse," testing defense in the AI-agent era.
Global Startup EXPO 2026
An international deep tech startup event first held at Expo 2025 Osaka, Kansai. As an Expo legacy project, the 2026 edition continues in central Osaka, in the Nakanoshima area (Day 1) and the Umekita area (Days 2-3). Focus areas span bio, AI and robotics, fusion energy, quantum, semiconductors, and space, connecting overseas startups with Japanese corporations, investors, and research institutions. The 2025 edition drew over 9,500 visitors with 145 booths from 21 countries and regions.
PHP Conference Ehime 2026
The Ehime edition of Japan's nationwide network of regional PHP conferences, debuting in 2026. Held at Ehime University's Johoku Campus, the programme is built around an open call for talks run through fortee. Shikoku has long been a blank spot on Japan's tech conference map, making this one of the few places where PHP engineers in the prefecture meet speakers from outside it.
CAPCOM Open Conference RE:2026 Tokyo
Capcom's technical conference opening up the internals and production know-how of its in-house RE ENGINE. Returning after three years, it expands to two cities, Tokyo and Osaka. A professional track on October 2 and a student track on October 3. Sessions reach into rendering and AI-driven QA automation on shipping titles. Free to attend, with a lottery if applications exceed capacity.
OKAYAMA STARTUP SCRUM
A business-exchange symposium hosted by Okayama City that brings startups together with local companies, financial institutions, and municipalities through keynotes, panels, a 15-startup pitch session, and matchmaking booths. First held in 2025, the second edition adds reverse pitches from major corporations such as Kawasaki Heavy Industries and Shimadzu, serving as a benchmark for a regional startup ecosystem.
Platform Engineering Kaigi 2026
The third edition of Japan's conference dedicated to platform engineering. The 2026 theme is "AI Native Platform Engineering," sharing hands-on knowledge of building developer platforms that embed AI agents. Grown out of the Platform Engineering Meetup community in 2024, it draws platform engineers, SREs, and CTOs.
NoMaps 2026
A city-wide festival across central Sapporo spanning conferences, exhibitions, music, and film. Modeled after SXSW and launched in 2016, the 2025 edition drew a cumulative 58,000 participants across 86 venues and 294 programs. A hub event of Hokkaido's startup ecosystem where entrepreneurs, creators, students, and local governments mix.
ServerlessDays Tokyo 2026
A serverless technology conference run by developers for developers, and the Tokyo edition of the globally distributed ServerlessDays series. Sessions favor hard-won lessons from production projects over vendor pitches. The 2026 edition centers on AI agents and serverless, with roughly 28 speakers and a hands-on workshop day.
Nagoya RubyKaigi 05
A regional Ruby conference staged at Osu Engeijo, a long-standing rakugo theater in Nagoya. Its defining trait is the format. The program is arranged like a traditional vaudeville bill and speakers present from the stage. Free to attend and capped at 100 seats, it fields eight acts including a keynote.
C# Kaigi 2026
The first community conference dedicated to C#. Japan had joint .NET study groups but no standalone C# event at scale, and this fills that gap from its 2026 launch. neuecc delivers the keynote on the state of C# today. Deliberately small and in-person only, it runs 12 CfP-selected sessions plus 10 lightning talks.
Tokyo Game Show 2026
The world's largest game trade show, organized by CESA. Marking its 30th anniversary, the 2026 edition expands to an unprecedented five days, with two business days followed by three public days. Recent editions drew 770-plus exhibitors and 240,000-plus visitors, spanning games, XR, AI, and esports. It is the year's largest venue for Japan's game industry to do business and reach the public.
Open Source Conference 2026 Hiroshima
The Hiroshima stop of Open Source Conference, a free single-day event registered via connpass at Satellite Campus Hiroshima on the 5th floor of the Hiroshima Prefectural Culture Center, about 20 minutes by tram from Hiroshima Station. The previous edition ran 18 sessions across three tracks with 16 booths, lining up regionally rooted groups such as a game engine user group and the FOSS4G geospatial community.
Frontend Conference Fukuoka 2026
A regional conference gathering front-end developers across Kyushu, held at Kyushu Sangyo University with sessions on UI implementation, performance, and architecture. Run by a volunteer committee, it draws roughly 200-300 attendees and anchors Kyushu's engineering community as a regional counterweight to Tokyo-centric events.
WOMAN AI UPDATE 2026
A two-day hands-on conference on how women use AI in both work and everyday life. Day 1 covers business and Day 2 daily life, with a try-it-yourself format that goes beyond lectures. It is the first flagship event of Women AI Initiative Japan (founded 2025), where the 2026 edition of the Women AI Talent Whitepaper, Japan's first survey on women's AI adoption, premieres.
Scrum Fest Mikawa 2026
An Agile and manufacturing conference held in Toyohashi, in the Mikawa region known for its concentration of manufacturers. It is distinctive for crossing hands-on hardware development knowledge with software Scrum practice, drawing corporate engineers and students from the Tokai area. The 2026 edition at emCAMPUS STUDIO features a keynote by Masaki Nakamura of Aisin, who leads the communication-support app YYSystem.
OPEN INNOVATION SUMMIT 2026
One of Japan's largest open innovation summits, hosted by eiicon. Large corporations, startups, municipalities, and investors gather for sessions and the STARTUP PITCH program, generating business co-creation matches. A distinctive feature is that corporate judges make on-the-spot co-creation decisions during the pitch. Around 2,000 attendees expected.
iOSDC Japan 2026
One of Japan's largest software engineering conferences focused on iOS and related technologies. Knowledge on Swift and Apple platform development comes together over three days in a hybrid format, with a distinctive culture of publicly submitted talk proposals.
Go Conference 2026
Japan's largest community conference dedicated to the Go programming language, run by the Gophers Japan association. Sessions span language internals, concurrency, and cloud-native practice under the 2026 theme "Go Far, Go Together." With recent editions drawing 450-500 attendees, it serves as a hub for the country's Go engineers.
Developers Summit 2026 FUKUOKA
A conference for Kyushu's IT engineers hosted by Shoeisha's CodeZine. Begun in 2015, it went dormant after moving online in 2020, then restarted in 2025 under the banner "Reboot Together" after a five-year gap. The 2026 theme is "Beyond Code — Connect, Create," with 16 sessions across two tracks and a reception, all free of charge.
Cloud Operator Days Tokyo 2026
An annual conference dedicated to cloud infrastructure operators. Launched in 2020 as the successor to OpenStack Days Tokyo, it focuses on sharing successes, failures, and know-how from operations. Typically combining summer on-demand sessions with an in-person closing event, the 2026 finale takes place September 11 at docomo R&D OPEN LAB ODAIBA in Odaiba.
Snowflake World Tour Tokyo 2026
The Tokyo stop of the annual conference series that data cloud vendor Snowflake runs across cities worldwide. More than 40 of its 100-plus sessions are customer case studies drawn from finance, manufacturing, retail, healthcare, telecom, and logistics. The 2026 theme is "Making AI Real for Business." The previous edition drew over 10,000 registrations across 113 sessions, reportedly the largest city stop on the World Tour.
MarkeZine Day 2026 Autumn
The autumn edition of the marketer-focused conference series run by the marketing media outlet MarkeZine. The 2026 edition is themed "RE-VISION" and runs more than 60 sessions over two days. Marketing leaders from brand-side companies share the stage with practitioners from agencies, covering consumer insight, strategy, organizational design, and the changing role of the marketer. On-site only, with no archived streaming.
Product Engineering Conference 2026
A conference co-founded by four companies - Ascend, hacomono, Helpfeel and Nealle - debuting in 2026. As generative AI commoditized development work, it centered on "product engineering", converting technology into customer value. Running across three halls, it cut across frontend, backend, SRE and design disciplines with more than 40 speakers, and tickets sold out.
DATERISE! 2026
A global startup event from Tohoku hosted by Sendai City. It combines a pitch contest, exhibitor booths, and festival-style side events, engaging everyone from startups to local residents. First held in 2025 with over 2,300 total participants including side events. The 2026 edition consolidates venues into the Sendai International Center Exhibition Hall and scales up.
FIT Osaka 2026 (Financial Information Technology Expo)
The Osaka edition of FIT, one of Japan's largest IT trade shows for financial institutions, focused on regional banks and credit unions. It is run by the financial trade paper Nikkin with the Japanese Bankers Association, the National Association of Shinkin Banks and other industry bodies as co-hosts and supporters. The previous edition drew over 3,300 on-site visitors, roughly 1,000 online viewers and 153 financial institutions including every regional bank in the Kinki area.
TECHNIUM Global Conference 2026
Japan's largest deep tech conference. By invitation only, it brings together researchers, entrepreneurs, investors, and corporations from the deep tech ecosystem worldwide. Discussions cover the societal implementation of advanced technologies including bio, materials, energy, and space.
DroidKaigi 2026
One of Japan's largest Android conferences, organized by engineers for engineers. Three days of technical sessions, codelabs, and networking, with many international speakers making it a globally minded technical event.
ICC Summit (Industry Co-Creation Summit)
A conference built on "learning together, creating industry together", where founders and executives learn side by side from morning to night. Its signature program is Catapult, a seven-minute pitch contest. Held twice a year (Fukuoka and Kyoto), it runs sessions across up to eight parallel venues. At the most recent Fukuoka 2026 edition, 90.1% of 801 respondents rated it "the best".
Open Developers Conference 2026
A developer-focused open source conference run by the OSPN community behind the Open Source Conference (OSC) series. Billed as an "open source culture festival," it packs seminars, hands-on sessions, and community booths on DevOps, dev tools, and cloud into a single free day. Modest in size at 100-plus attendees, its strength since 2018 has been direct access to the developers behind OSS projects.
Innovation Japan 2026 (University Trade Fair)
Japan's largest university-industry matching event, hosted by the Japan Science and Technology Agency (JST). Patented technology seeds from universities nationwide are exhibited for matching with corporate R&D and new business teams. The 2025 edition drew about 14,000 visitors to 291 exhibited seeds. Less a startup conference and more a trade fair that seeds technology transfer and joint research.
AI Expo Summer 2026
The summer edition of the AI-focused exhibition hosted by AIsmiley, operator of Japan's AI portal media. Over 100 companies present 200+ AI solutions alongside 40+ conference sessions. Following the Spring 2026 edition at Tokyo International Forum, it moves to Sankaku Hiroba at the Shinjuku Sumitomo Building. Free to attend, it serves companies comparing generative AI and AI agent products.
ProductZine Day 2026
The fifth edition of the annual conference run by ProductZine, Shoeisha's product management media. Under the theme of the chaos product managers face in the AI era and how to systematize their work, it offered eight free sessions covering discovery, strategy, analytics and talent development, plus small-group "Discuss with the Speaker" slots and a lottery-based networking reception aimed at in-house product managers.
PyCon JP 2026
Japan's largest conference dedicated to the Python programming language. Python developers from Japan and abroad gather to share knowledge across web development, data science, machine learning, and automation. Since its first edition in 2011, the event has drawn around 1,000 attendees annually, growing into one of the leading PyCon events in the Asia-Pacific region. The conference spans two days plus a sprint (development hackathon) day.
Tokyo Game Dungeon 13
An indie game exhibition for solo developers and small teams, launched in 2022 by indie developer Iwasaki and held three to four times a year in Hamamatsucho. The 13th edition hosts 276 booths, reserving 100 slots for first-time exhibitors to keep the barrier to entry low. With 1,000 yen admission (free under 18), it has grown to around 3,000 visitors focused on playtesting and developer exchange.
Open Source Conference 2026 Kyoto
The Kyoto stop of the travelling open source festival that began in Tokyo in 2004. A free one-day event packing community, corporate and school exhibition booths together with multi-track seminars and lightning talks, held on the basement floors of Kyoto Research Park Building 4. The previous edition drew 290 visitors, 34 seminars and 46 booths, and it serves as the annual meeting point for Kansai's open source communities.
Scrum Fest Osaka 2026
The Kansai region's largest Agile and Scrum conference, running since 2019. During the pandemic in 2020 it pioneered an online format where Scrum communities across Japan gathered as individual tracks, becoming a hub connecting regional communities. The 2026 edition is a hybrid event at Umeda Crystal Hall, with a keynote by Ryutaro Yoshiba (Attractor).
Google Cloud Next Tokyo
The largest Google Cloud conference in Japan, featuring the latest technologies and case studies for Google Cloud and Workspace. Includes keynotes, technical sessions, and hands-on labs. 13,000 attendees in 2025.
KubeCon + CloudNativeCon Japan 2026
The Japanese edition of the world's largest Kubernetes and cloud-native technology conference. Hosted by CNCF, it features two days of keynotes, sessions across 10+ tracks, tutorials, and networking. All sessions are later published on the CNCF YouTube channel.
AI Agent Day 2026 Summer
One of Japan's largest AI agent conferences, hosted by the AICX Association. Under the theme of "complete case-study dissection," two days of sessions unpack real enterprise deployments and the common walls of AI agent adoption, such as stalled rollouts, over-reliance on individuals, and unmanaged "rogue agents." The past three editions drew over 12,000 cumulative viewer registrations.
DX Comprehensive EXPO 2026 Summer Tokyo
The summer edition of one of Japan's largest comprehensive DX exhibitions, bringing together DX solutions for operational efficiency, work style reform, and business infrastructure. Visitors can compare products across SaaS, AI, RPA, cloud, and security for free. Following the Spring 2026 edition in February, the series draws over 100,000 visitors annually across Tokyo, Osaka, and Fukuoka.
CEDEC 2026 (Computer Entertainment Developers Conference)
Japan's largest conference for game developers, running since 1999. Roughly 200 sessions span engineering, visual arts, sound, and game design, making it the country's central gathering of game and entertainment development expertise. The 2026 edition again runs three days at Pacifico Yokohama North in hybrid format with online attendance.
AI DevEx Conference 2026
A conference on developer productivity and developer experience in the AI era, hosted by Findy as the successor to its Developer Productivity Conference. Under the theme "the future of development productivity and engineering organizations in the AI era," 56+ speakers discuss the relationship between AI and organizations and the evolution of development platforms. Engineering leaders from global big tech companies also take the stage.
PHP Conference Japan 2026
The annual gathering of Japan's PHP community and one of the country's oldest language conferences, first held in 2000. Run by a volunteer committee tied to the Japan PHP Users Group at Ota Industrial Plaza PiO, its home since the first edition. Despite free admission, it packs around 30 accepted talks across multiple tracks, ranging from AI-era development and legacy code to PHP internals such as OPcache and JIT, making it a fixed point for observing where Japan's PHP community stands.
Developers Summit 2026 Summer
The summer edition of Developers Summit (Devsumi), a conference for IT engineers hosted by Shoeisha. Two days of technical sessions and exhibits themed on engineers' contribution to business, co-located with IT Strategy Summit 2026.
SoftBank World
Japan's largest enterprise technology event hosted by SoftBank. Anchored by an executive keynote, it showcases AI, DX, and communications technology trends in a hybrid format.
WebX 2026
One of Asia's largest global Web3 conferences. Companies, financial institutions, investors, developers, and government officials in the crypto and blockchain space gather from around the world. In 2025, 14,115 attendees from 99 countries participated with over 270 speakers.
SRE NEXT 2026
Japan's largest conference dedicated to Site Reliability Engineering, born out of the SRE Lounge community in 2020 and drawing 1,272 attendees in 2025. The 2026 edition runs two days under the theme "Inclusive SRE," serving as the Japanese SRE scene's annual checkpoint where reliability practices are shared across company boundaries.
SORACOM Discovery 2026
Japan's largest IoT conference, hosted by IoT platform provider Soracom. Through keynotes, about 30 specialized sessions, and exhibits from 30+ partners, attendees survey the frontline of AI-plus-IoT industrial applications in a single day. Admission is free; the 2025 edition drew 2,000+ visitors. The 2026 theme explores IoT connecting people and AI.
SPACETIDE 2026
One of the largest international space business conferences in the Asia-Pacific region. Space startups, major corporations, government agencies, and investors gather to discuss the frontlines of satellite, rocket, and space utilization business in both Japanese and English. The 11th edition in 2026.
TECHSPO Tokyo 2026
The Tokyo edition of TECHSPO, a global technology exhibition covering tech, AdTech, MarTech, and SaaS. Developers, marketers, designers, and technology vendors gather to experience, demo, and test the latest technologies. DigiMarCon Japan 2026 is co-located, offering sessions on digital marketing strategy.
IVS 2026
One of Japan's largest startup conferences. Entrepreneurs, investors, and corporations gather in Kyoto for the pitch contest LAUNCHPAD, sessions, and networking. The 2026 edition ran July 1-3 at Miyakomesse with around 13,000 attendees and 340 exhibitors, as LAUNCHPAD marked its 20th anniversary.
AWS Summit Japan
The largest AWS cloud technology event in Japan. Features keynotes, technical sessions, and exhibition booths showcasing the latest cloud services. 69,000 attendees in 2025. Free with pre-registration.
Interop Tokyo 2026
Japan's largest comprehensive network and infrastructure technology event, running since 1994. Features ShowNet for live demonstrations of cutting-edge internet technologies, along with exhibitions and sessions on AI, security, and cloud. Including co-located events like Digital Signage Japan and AI NATIVE EXPO, total attendance reaches 150,000.
TSKaigi 2026
Japan's largest TypeScript conference, organized by the TSKaigi Association. The 2026 edition, themed "Learn, Connect, Break the Mold (Type)," ran for two days at Bellesalle Haneda Airport with about 1,000 on-site and roughly 2,000 total attendees including online. Microsoft's Jake Bailey keynoted on TypeScript 7.
B Dash Camp 2026 Spring in Sapporo
Japan's largest invitation-only startup conference. Founders, public company executives, and VCs gather for panel discussions and the pitch contest 'Pitch Arena,' offering high-density networking. Held twice a year (Spring: Sapporo / Fall: Fukuoka).
SusHi Tech Tokyo 2026
Asia's largest global innovation conference hosted by the Tokyo Metropolitan Government. Startups, corporations, investors, and city representatives from around the world gather to discuss and advance sustainable future societies. The event spans two business days and one public day, attracting over 60,000 visitors in 2025.
RubyKaigi 2026
One of the world's largest international conferences dedicated to the Ruby programming language. Featuring Ruby creator Yukihiro Matsumoto (Matz), Ruby core team members, and developers from around the globe, the event offers deeply technical talks on language implementation, performance optimization, and cutting-edge libraries and frameworks. Held annually since 2006, the conference rotates across cities in Japan.
Startup JAPAN EXPO 2026
Japan's largest startup exhibition operated by Sansan Inc. Over 450 companies exhibit, providing a platform for startups to connect with corporations, investors, and local governments. Efficient networking through the Eight business card app is a key feature. Co-located exhibitions covering manufacturing, logistics, and franchises are also held.
Japan IT Week Spring 2026
Japan's largest comprehensive IT and DX exhibition, comprising multiple specialized shows covering system development, operations, security, AI, and DX. With 1,100 exhibitors, it attracts around 60,000 business professionals for product comparison and business meetings. Held twice annually in spring and autumn.
TEAMZ WEB3/AI SUMMIT 2026
Japan's largest Web3 and AI conference. Entrepreneurs, investors, and developers from over 80 countries gather in Tokyo to discuss the forefront of blockchain, AI, and crypto. Held at the historic Happo-en Japanese garden, it features internationally diverse networking. The core event of Tokyo Web3/AI Week.
AI Expo Spring 2026
One of Japan's largest AI-focused exhibitions. Over 100 companies showcase 200+ AI solutions, with 40+ conference sessions. Attendees can compare cutting-edge AI technologies including generative AI, image recognition, NLP, and physical AI robots. Attracts many corporate professionals exploring AI adoption for business.
PHPerKaigi 2026
A tech conference styled as a "festival by PHPers, for PHPers." Since its 2018 debut it has built a devoted following through its emphasis on attendee interaction — code battles, unconferences, and hallway conversations alongside talks. The 2026 edition ran three days, March 20-22, in Nakano as an offline-online hybrid.
Startup Aquarium 2026
Japan's largest startup career fair, hosted by Coral Capital. The event connects talent interested in startup careers and career changes with hiring-focused startups. Featuring sessions by prominent founders and CxOs, 1-on-1 meeting functionality, and company booths, attendees can explore startup careers from every angle. Growing in scale each year since its 2020 debut, the fifth edition in 2026 expects over 3,000 participants.
FIN/SUM 2026
Japan's largest fintech conference, co-hosted by Nikkei Inc. and the Financial Services Agency. Held in Marunouchi, Tokyo since 2016, it gathers public- and private-sector finance leaders. The 10th edition in 2026, themed "FIN/SUM NEXT," debated the new financial ecosystem shaped by AI and blockchain, with PM Takaichi and BOJ Governor Ueda on stage. It anchors Japan Fintech Week.
DX Comprehensive EXPO 2026 Spring Tokyo
One of Japan's largest comprehensive DX exhibitions, bringing together DX solutions for operational efficiency, work style reform, and business infrastructure. Covers a wide range including SaaS, AI, RPA, cloud, and security. Over 100,000 visitors attend annually across Tokyo, Osaka, and Fukuoka editions.
Developers Summit
A longstanding IT engineer festival since 2003. The 2026 theme is 'Beyond the Code' with 92 sessions and the first Dev x PM Day. A community-driven conference supporting technical knowledge sharing and career development.
Spectrum Tokyo Festival 2026
A two-day "music-festival-like" design festival hosted by the design community Spectrum Tokyo. Every talk is paired with an AMA dialogue, and simultaneous Japanese-English interpretation connects practitioners from Japan and abroad. The 2026 edition moved from its usual December slot to February, drawing 40+ speakers and 400+ attendees to the DMM.com offices in Roppongi.
TechGALA Japan 2026
A city-wide technology and startup festival in Nagoya hosted by the Central Japan Startup Ecosystem Consortium, an industry-academia-government body spanning Aichi, Nagoya, and Hamamatsu. Spread across the Sakae and Tsurumai districts (including STATION Ai), the second edition in January 2026 drew participants from 39 countries and regions, with 5,500+ visitors, 141 sessions, and 250+ exhibits. A follow-up edition, "BEYOND," is planned for December 2026.
IVS 2025
One of Japan's largest startup conferences. Under the theme "Reshape Japan with Global Minds," the 2025 edition drew a record 13,000 attendees (20% from overseas, 21% women) from over 70 countries, with 508 side events and 3,900 matchings, double the prior year. Notion co-founder Ivan Zhao was among the speakers, and Advance Composite won LAUNCHPAD. It also debuted the matching system "4S."
IVS 2024
One of Japan's largest startup conferences. The 2024 edition moved to Kyoto Pulse Plaza and drew 12,000 attendees from 67 countries, with 198 sessions and 307 side events widening its international reach. Female participation hit a then-record 24%. The LAUNCHPAD pitch contest was won by RENATUS ROBOTICS with its automated warehouse system.
IVS 2023
One of Japan's largest startup conferences. The 2023 edition was a turning point, moving to Kyoto for the first time and dropping its invitation-only format for open registration. Around 10,000 people attended, with over 20% from overseas. The LAUNCHPAD pitch contest drew a record 400 applicants, with care-tech startup aba taking the win. IVS Crypto ran alongside, underscoring the Web3 presence.