Timeline

Timeline

Upcoming conferences from today onward, in chronological order. Ended events live in the archive.

Browse by category
Today October 14, 2026
October 2026 22
  1. 10/13 (Tue) – 16 tech Chiba

    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.
  2. 10/13 (Tue) – 16 mobility Chiba

    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.
  3. 10/14 (Wed) – 16 engineering Fukui

    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.
  4. 10/15 (Thu) – 16 fintech Tokyo

    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.
  5. 10/16 (Fri) engineering Tokyo

    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.
  6. 10/16 (Fri) – 17 ruby Tokyo

    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.
  7. 10/17 (Sat) – 18 game Osaka

    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.
  8. 10/17 (Sat) design Tokyo

    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.
  9. 10/18 (Sun) ai Osaka

    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.
  10. 10/19 (Mon) – 23 security Shizuoka

    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.
  11. 10/19 (Mon) – 21 engineering-management Hyogo

    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.
  12. 10/21 (Wed) – 23 martech Tokyo

    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."
  13. 10/21 (Wed) – 23 tech Chiba

    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.
  14. 10/21 (Wed) – 23 security Tokyo

    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.
  15. 10/23 (Fri) – 12/18 product-management FukuokaOsakaTokyo

    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.
  16. 10/24 (Sat) developer Tokyo

    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.
  17. 10/27 (Tue) – 30 security 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.
  18. 10/27 (Tue) – 29 tech Online

    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.
  19. 10/29 (Thu) – 30 mobile Tokyo

    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.
  20. 10/31 (Sat) programming Online

    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.
  21. 10/31 (Sat) developer Niigata

    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.
  22. 10/31 (Sat) game Tokyo

    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.
November 2026 44
  1. 11/1 (Sun) developer Miyagi

    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.
  2. 11/3 (Tue) – 4 game Tokyo

    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.
  3. 11/4 (Wed) – 6 dx Chiba

    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.
  4. 11/5 (Thu) – 6 data-engineering Tokyo

    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.
  5. 11/5 (Thu) – 7 foodtech Tokyo

    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.
  6. 11/6 (Fri) design Tokyo

    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.
  7. 11/7 (Sat) cloud Akita

    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.
  8. 11/8 (Sun) game Tokyo

    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.
  9. 11/11 (Wed) – 13 startup Fukuoka

    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.
  10. 11/11 (Wed) – 13 ai Chiba

    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.
  11. 11/12 (Thu) – 13 engineering-management Tokyo

    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.
  12. 11/13 (Fri) – 14 open-source Osaka

    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.
  13. 11/13 (Fri) – 14 developer Hokkaido

    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.
  14. 11/14 (Sat) game Fukuoka

    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.
  15. 11/14 (Sat) – 15 design Tokyo

    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.
  16. 11/14 (Sat) ruby Fukui

    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.
  17. 11/14 (Sat) programming Tokyo

    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.
  18. 11/14 (Sat) programming Niigata

    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.
  19. 11/17 (Tue) – 18 security Tokyo

    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.
  20. 11/17 (Tue) game Tokyo

    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.
  21. 11/18 (Wed) – 19 tech Tokyo

    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.
  22. 11/19 (Thu) – 27 network Tokyo

    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).
  23. 11/19 (Thu) – 20 dx Okinawa

    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.
  24. 11/20 (Fri) crypto Tokyo

    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.
  25. 11/21 (Sat) design Fukuoka

    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.
  26. 11/21 (Sat) security Tokyo

    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.
  27. 11/21 (Sat) game Hyogo

    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.
  28. 11/21 (Sat) open-source Niigata

    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.
  29. 11/21 (Sat) ruby Miyagi

    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.
  30. 11/22 (Sun) programming Tokyo

    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.
  31. 11/22 (Sun) open-source Yamaguchi

    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.
  32. 11/25 (Wed) – 26 martech Tokyo

    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.
  33. 11/25 (Wed) – 26 security Miyagi

    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.
  34. 11/26 (Thu) – 27 tech Tokyo

    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.
  35. 11/27 (Fri) – 28 fintech Tokyo

    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.
  36. 11/27 (Fri) – 28 engineering Tokyo

    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.
  37. 11/27 (Fri) data-platform Tokyo

    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.
  38. 11/27 (Fri) open-source Tokyo

    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.
  39. 11/27 (Fri) – 28 engineering Okinawa

    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.
  40. 11/27 (Fri) startup Tokyo

    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).
  41. 11/27 (Fri) – 29 programming Tokyo

    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.
  42. 11/28 (Sat) game Tokyo

    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.
  43. 11/30 (Mon) – 12/3 business Tokyo

    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.
  44. 11/30 (Mon) – 12/2 tech Tokyo

    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.
December 2026 13
  1. 12/2 (Wed) – 8 game Tokyo

    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.
  2. 12/3 (Thu) – 4 network Okinawa

    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.
  3. 12/3 (Thu) – 4 tech Shimane

    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.
  4. 12/5 (Sat) engineering Ishikawa

    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.
  5. 12/5 (Sat) open-source Okinawa

    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.
  6. 12/5 (Sat) security Hiroshima

    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.
  7. 12/6 (Sun) – 7 healthcare Tokyo

    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.
  8. 12/7 (Mon) – 9 open-source Tokyo

    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.
  9. 12/10 (Thu) – 11 security Kumamoto

    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.
  10. 12/12 (Sat) open-source Fukuoka

    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.
  11. 12/15 (Tue) – 17 deeptech Aichi

    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.
  12. 12/16 (Wed) – 17 startup Tokyo

    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.
  13. 12/26 (Sat) game Osaka

    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.
January 2027 6
  1. 1/6 (Wed) – 8 developer Tokyo

    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.
  2. 1/8 (Fri) – 9 developer Toyama

    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.
  3. 1/16 (Sat) programming Kyoto

    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.
  4. 1/19 (Tue) – 22 security Tokyo

    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.
  5. 1/20 (Wed) – 22 network Fukui

    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.
  6. 1/30 (Sat) open-source Osaka

    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.
February 2027 7
  1. 2/6 (Sat) – 7 design Tokyo

    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.
  2. 2/12 (Fri) – 13 security Ehime

    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.
  3. 2/17 (Wed) – 19 developer Tokyo

    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.
  4. 2/20 (Sat) – 21 security 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.
  5. 2/20 (Sat) infrastructure Tokyo

    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.
  6. 2/20 (Sat) game Tokyo

    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.
  7. 2/22 (Mon) – 3/5 fintech Tokyo

    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.
March 2027 5
  1. 3/1 (Mon) – 4 startup Fukuoka

    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.
  2. 3/2 (Tue) engineering-management Tokyo

    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.
  3. 3/2 (Tue) – 4 programming Tokyo

    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.
  4. 3/12 (Fri) game Osaka

    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.
  5. 3/20 (Sat) – 22 programming Tokyo

    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.
April 2027 4
  1. 4/6 (Tue) – 7 web3 Tokyo

    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.
  2. 4/7 (Wed) – 9 tech Tokyo

    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.
  3. 4/14 (Wed) – 16 programming Miyazaki

    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.
  4. 4/27 (Tue) – 28 ai Tokyo

    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.