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TSKaigi 2026

TSKaigi 2026
Date 2026.05.22 – 05.23
Venue Bellesalle Haneda Airport
Fee General with after-party ¥8,000 / General ¥5,000 / Student with after-party ¥3,000 / Online free
Official site

Overview

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.

Speakers

  • Jake Bailey (Senior Software Engineer, Microsoft; 2026 keynote)

Foundation

Founded
2024
Founder
Volunteers from Japan's TypeScript community established the TSKaigi Association and held the first edition at Nakano Central Park in 2024

Born from the absence of a large-scale conference dedicated to TypeScript in Japan, as "an event for everyone working with TypeScript."

Transition

  1. 2024 First edition at Nakano Central Park drew 2,400 registrations
  2. 2024 Regional edition TSKaigi Kansai held
  3. 2025 Moved to Bellesalle Kanda for the first two-day edition, with regional edition TSKaigi Hokuriku also held
  4. 2026 Held at Bellesalle Haneda Airport, growing to about 1,000 on-site attendees. The next edition was announced for November in Sendai

Voices

The event design for sparking interaction was impressive, like NFC tags in the swag for exchanging contacts.
A wide range of sessions, from the latest TypeScript developments to combining TypeScript with AI-driven development.
Many sponsor companies report strong results from booth interactions and hiring touchpoints.
Staffed a booth while catching talks, taking home practical type techniques like branded types (from Seki's report, in Japanese)
Open space discussions with engineers from other companies even sparked a new meetup (from Mazacchi's report, in Japanese)
Engineers from every Inc. highlighted Microsoft's keynote on porting TypeScript 7 to Go and a session framing type design around business models, as lessons on types in the AI era (from every Tech Blog's report, in Japanese)

In the News

Sponsors

Platinum Sponsors

Gold Sponsors

Silver Sponsors

Bronze Sponsors

Other editions

developer Miyagi
EST. 2024

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.

Sun, Nov 1
150 (expected, including staff)

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