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FlutterKaigi 2026

FlutterKaigi 2026
Date 2026.10.29 – 10.30 Day 1 10:00–17:40 / Day 2 10:00–17:30
Venue Hamamatsucho Convention Hall
Fee General JPY 13,200 (early bird JPY 9,900 ended Sep 6) / Individual sponsor from JPY 15,000; networking party included. Students can get ticket, travel and lodging refunds via the scholarship program
Register on the official site

Overview

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.

Program

  • Two days with four parallel rooms (JTCC Hall, UPSIDER Hall, Material, Cupertino), mixing 30-minute sessions and 10-minute short talks
  • Day 1 includes English sessions by overseas speakers such as Craig Labenz and Remi Rousselet
  • Sponsor lunch stages on both days
  • Day 2 features a student support program, cheer LTs, a quiz, and a Google panel discussion, followed by a networking party included in the ticket
  • Sponsor booths and job boards

Speakers from past editions

  • Lucas Goldner (YOUTRUST, Flutter GDE, 2025 keynote)

Foundation

Founded
2021
Founder
Founded in 2021 by a volunteer organizing committee of Japanese Flutter engineers

Born as an annual large-scale conference for sharing Flutter/Dart knowledge and connecting the community as Flutter adoption spread across Japan.

Transition

  1. 2021 First FlutterKaigi held online
  2. 2024 Held over two days with an eve-of-event party at Ariake Central Tower Hall & Conference
  3. 2025 Held at Otemachi Place with about 300 attendees, a keynote, 20 sessions and 15 lightning talks
  4. 2026 Set for October 29-30 at Hamamatsucho Convention Hall

Voices

I spent the full day across sessions, booths, and the after-party — the warmth of the Flutter community really came through.
The venue buzzed with energy all day, with rich sessions and packed sponsor booths.
An annually stimulating event where cutting-edge topics and real-world case studies convey the community's passion firsthand.
IVRy sent its entire app engineering team, gaining hands-on insights from AI-driven E2E testing to server-driven UI (from shanonim's report, in Japanese)
A Flutter beginner spent two days absorbing practical knowledge on AI and monetization from talks and conversations (from Duo's report, in Japanese)

In the News

Sponsors

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