A Tokyo Weekend Around a 3-Star Michelin Dinner › IT Conferences & Tech Events 2026

2026 · Tokyo metro · 21 events · Apr – Dec

Tokyo Tech Calendar

IT conferences, developer summits, and trade shows in the Tokyo metro area.
^¹ Makuhari Messe, Chiba (~30 min from Shinjuku) · ^² Yokohama (~25 min from Shinjuku)

Summer surge Jun–Jul · 7 events in 7 weeks

Autumn run Sep–Nov · 8 events

Today: Jun 2 Code with Claude Tokyo in 8 days · AWS Summit Japan in 23 days · KubeCon Japan & Google Cloud Next Tokyo in 57–58 days

Cloud AI Security Mobile Web3 DevOps / SRE Trade Show Testing Open Source

April 5 events Past

Apr 6–8

Tokyo AI Week / TS26

Happo-En, Tokyo (co-located with TEAMZ Summit)

AI Web3 Paid · ¥31,550+

Apr 8–10

Japan IT Week Spring

Tokyo Big Sight · 51,370 visitors in 2026

Trade Show Free

Apr 14–16

DevOpsDays Tokyo

Osaki Bright Core Hall

DevOps Paid EN ✓ (simul. interp.)

Apr 15–17

NexTech Week Spring

Tokyo Big Sight

AI B2B Expo Paid

Apr 27–29

SusHi Tech Tokyo

Tokyo Big Sight · 700+ startups · ~60,000 participants

Startup Free

June 2 events Summer surge begins

Jun 10 8 days away

Code with Claude

Tokyo (venue TBC) · Final stop: SF May 6 → London May 19 → Tokyo

AI · Claude Free · Lottery EN only

Jun 25–26

AWS Summit Japan

Makuhari Messe, Chiba ^¹ · 260+ sessions

Cloud Agentic AI Free Full EN track

July 5 events Peak month

Jul 2–3

TECHSPO Tokyo

Hilton Tokyo Bay

AdTech · MarTech · SaaS Paid

Jul 10–11

SRE NEXT 2026

TOC Ariake, Tokyo · Hybrid in-person + stream

SRE Paid JP

Jul 15–17

TECHNO-FRONTIER

Tokyo Big Sight

Industrial · IoT · Embedded Paid

Jul 28–30

KubeCon + CloudNativeCon Japan

Yokohama ^² · +ArgoCon, KeycloakCon, Community Day

Kubernetes Cloud-Native Paid · Scholarships EN + JP

Jul 30–31

Google Cloud Next Tokyo

Tokyo Big Sight · 9 breakout tracks · Dev Night evening event

Cloud Gemini AI Free Partial EN

September 4 events Autumn run begins

Sep 1–3

DroidKaigi 2026

Bellesalle Shibuya Garden

Android Paid Partial EN

Sep 10–11

MCP Dev Summit / AGNTCon + MCPCon Japan

Tokyo (venue TBC) · New for 2026

Agentic AI MCP

Sep 11–13

iOSDC Japan 2026

Tokyo (venue TBC) · Hybrid offline/online

iOS · Swift Paid JP

Sep 25–27

ETHGlobal Tokyo

Tokyo (venue TBC) · 48-hour hackathon · Web2 devs welcome

Ethereum Free · Apply EN ✓

October 2 events

Oct 16–17

Kaigi on Rails 2026

Bellesalle Shibuya Garden

Ruby on Rails Paid

Oct 21–23

Japan IT Week Autumn

Makuhari Messe, Chiba ^¹

Trade Show Free

November 2 events

Nov 12–13

Tokyo Test Fest

Osaki Bright Core Hall

QA · Testing Paid

Nov 17–18

CODE BLUE 2026

Versailles Takadanobaba · Trainings Nov 11–15

Security Research Paid Simul. interp.

December 1 event

Dec 7–9

Open Source Summit Japan

Tokyo

Linux · Open Source Paid