Developer conferences in Japan 2026

There are 9 developer conferences in Japan with a 2026 edition and a public sponsor or exhibitor list or published sponsorship prices. The biggest is Go Conference 2026, with 81 companies listed.

All events 9 Trade shows 1

291 sponsor and exhibitor listings at these events

Developer

All industries Developer9 Healthcare3 Manufacturing2 Startup2 AI1 Cybersecurity1 Marketing1 Finance1 Energy1 Media1 Science1

Japan

2026

Timing

Upcoming4 Next 90 days4

Year

Any year 20269

Size

Companies listed

50+ companies3

Prices

Sponsorship packages

Publishes prices1

Type

All events9 Trade shows1

Trade shows: 100 or more exhibitors, or an expo floor on the organizer’s own description.

Clear all

9 events

Most companies listed

Most companies listed Soonest first Most new companies Most companies returning Cheapest package Biggest top package

#	Conference	Companies	New	Returning	Packages from
1	1. Go Conference Sep 11, 2026 · Nakano, Japan	81companies
2	2. DroidKaigi Sep 1–3, 2026 · Tokyo, Japan	59companies
3	3. Kaigi on Rails Oct 16–17, 2026 · Shibuya, Japan	56companies
4	4. RubyKaigi Apr 22–24, 2026 · Hakodate, Japan	38companies
5	5. Open Source Summit Japan Dec 7–9, 2026 · Tokyo, Japan	20companies
6	6. Embedded Linux Conference Asia Dec 7–9, 2026 · Tokyo, Japan	19companies
7	7. Tokyo Test Fest Nov 12–13, 2026 · Tokyo, Japan	11companies
8	8. Japan IT Week Nov 18–20, 2026 · Osaka, Japan	7companies	+1new	55%returning
9	9. KubeCon + CloudNativeCon Japan Jul 29–30, 2026 · Yokohama, Japan				from$3,000 (currency not stated)

Companies: sponsors and exhibitors on each event’s current edition, read from its own directory, sponsor page or prospectus. New: not listed at the previous edition. Returning: share of the previous edition’s companies listed again.

Key facts

Across the 9 developer conferences in Japan 2026.

Events94 upcoming

Listings291sponsors and exhibitors on their current editions

Trade shows1100+ exhibitors or an expo floor

Biggest81Go Conference

Questions

What are the biggest developer conferences in Japan with a 2026 edition?

By companies listed at their current edition: Go Conference (81), DroidKaigi (59), Kaigi on Rails (56), RubyKaigi (38), Open Source Summit Japan (20).

Which developer conferences in Japan with a 2026 edition are coming up next?

Tokyo Test Fest (Nov 12–13, 2026, Tokyo); Japan IT Week (Nov 18–20, 2026, Osaka); Open Source Summit Japan (Dec 7–9, 2026, Tokyo); Embedded Linux Conference Asia (Dec 7–9, 2026, Tokyo).