JSConf JP 2026
Overview
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.
Program
- Four parallel tracks
- Two keynotes (an interview with Brendan Eich, and Josh Junon)
- About 20 sessions and 16 lightning talks
- 14 sponsor sessions and 16 sponsor lightning talks
- Networking party 19:40-21:30
Speakers
- Marco Ippolito (Senior Security Engineer at HeroDevs, Node.js TSC member; 2026)
- Thomas Nattestad (Senior Product Manager at Google; 2026)
- Josh Junon (keynote 'Yep, I've Been Pwned - What I Learned from Being Hacked'; 2026)
- Eiji Kitamura (Developer Advocate, Chrome Developer Relations at Google; 2026)
Foundation
- Founded
- 2019
- Founder
- Yosuke Furukawa (Representative Director, Japan Node.js Association) and team
Launched in 2019 as Japan's edition of the international JSConf brand, evolving from the Tokyo NodeFest held since 2011. Branded as a festival for all of JavaScript beyond Node.js, it has served as Japan's gateway to the global JS community.
Transition
- 2011 Tokyo NodeFest, its predecessor, begins
- 2019 First JSConf JP held as the Japanese edition of the JSConf brand
- 2025 Sixth edition held on November 16, in the 30th anniversary year of JavaScript
- 2026 Seventh edition on November 22 at Bellesalle Kanda, with 37 speakers across four tracks announced
Voices
Sessions and booth conversations on monorepo operations overlapped with challenges in their own upcoming development (from Reiwa Travel Engineering Blog, in Japanese)
Exchanges with engineers from Japan and abroad yielded insights into the latest web development trends and AI adoption (from LY Corporation Tech Blog, in Japanese)
Attended as a premium sponsor with a team of seven and ran a booth, feeling the community's energy firsthand (from LayerX Engineering Blog, in Japanese)
Sponsors
プレミアムスポンサー
-
ミイダス株式会社 -
AnotherBall Pte Ltd - サイボウズ株式会社
-
MCD3株式会社 -
Arkor -
株式会社ドワンゴ -
supa株式会社 -
株式会社Linc'well -
NCDC株式会社 -
株式会社マネーフォワード -
株式会社LayerX -
Vercel -
株式会社enechain -
株式会社EVERLANE -
クーガー株式会社 -
GMO Flatt Security株式会社
スポンサー
-
株式会社ビーワークス -
CodeRabbit, Inc. -
株式会社ギークニア -
フォルシア株式会社
Source: official sponsor list (as of October 9, 2026)
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Kaigi on Rails 2026
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