TL;DR For developer conferences: Developers Summit KANSAI (Aug 21, free) is the highest-signal event. For deep-tech and startups: Global Startup EXPO (Oct 5–7). For trade/B2B: Japan IT Week Osaka (Nov 18–20, 12k visitors). For ongoing English-language community: OKTech meets monthly.
Upcoming Flagship Events (2026)
| Event | Date | Venue | Cost | Scale |
|---|---|---|---|---|
| Google I/O Extended Osaka | Jul 18 | QUINTBRIDGE, Osaka | Free | 100 in-person [1] |
| Developers Summit KANSAI | Aug 21 | Umeda South Hall | Free | 18 sessions, 2 tracks [2] |
| Global Startup EXPO 2026 | Oct 5–7 | Grand Front / Grand Green Osaka | Free | Intl deep tech [3] |
| Japan IT Week & DX Week [Osaka] | Nov 18–20 | INTEX Osaka | Free | 250 exhibitors, 12k visitors [4] |
Google I/O Extended 2026 Osaka — Jul 18
GDG Greater Kwansai’s local event sharing and discussing Google I/O announcements. [1] Sessions span AI, Cloud, Android, Web, and Flutter. 13:30–18:00 at QUINTBRIDGE (Higashinodacho, Osaka); networking 16:30–17:30. Separate paid social afterward. Register on connpass; ~56 of 100 in-person spots taken as of early June.
Developers Summit 2026 KANSAI — Aug 21
Shoeisha/CodeZine’s annual flagship developer conference in Kansai, running since 2012. [2] Theme: “Re:Developer — Engineer Redefinition” — how AI advances reshape developer roles, team structures, career paths, and security practices. Venue: Umeda South Hall, 11F, Osaka Umeda Twin Towers South. Free; registration opens early July. In-person only; no recording or photography. 18 sessions across 2 tracks, curated by a 9-person regional content committee.
Global Startup EXPO 2026 (GSE2026) — Oct 5–7
METI/JETRO/NEDO flagship deep-tech event, successor to the 2025 Expo-era edition. [3] [5] Focus sectors: bio/healthcare, AI & robotics, fusion energy, quantum, semiconductors/comms, and space. Primary venues: Knowledge Capital Congress Convention Center (Grand Front Osaka North Bldg, B2F) and Congress Square Grand Green Osaka (South Bldg, 4F) — both within 5 min of JR Osaka Station. Side events in Kyoto and Hyogo.
Japan IT Week & Japan DX Week [Osaka] — Nov 18–20
Western Japan’s largest IT/DX trade show. [4] 10:00–17:00 daily at INTEX Osaka (Suminoe-ku). 13 sub-expos across two umbrella shows:
Japan IT Week: Software Dev & Engineering Support · Embedded & Edge AI · IoT Systems Dev · Information Security · AI Infrastructure & Data Center · IT Staffing & Talent Development
Japan DX Week: AI & Business Automation · Office-work DX · Data-Driven Management · Deskless Work DX · B2B E-Commerce DX · Sales DX · Digital Marketing
Already Held in 2026 (Reference)
| Event | Date | Venue | Highlights |
|---|---|---|---|
| OSC 2026 Osaka | Jan 31 | Osaka Industrial Creation Hall | Open source booths + seminars, free [6] |
| JANOG57 Osaka | Feb 11–13 | Grand Front Osaka (Congre CC) | Network operators conf, 100+ booths, free [7] |
| Build with AI Kansai 2026 | Apr 19 | IPUT Osaka, Umeda | GDG AI/Cloud event, 300 in-person, free [8] |
Recurring Community Events
OKTech — Monthly, English-friendly
Kansai’s largest English-speaking tech meetup, 2,000+ members. [9] Monthly Saturday sessions, typically 17:00–19:30. Upcoming: Jun 20 (R3 Institute/gusuku Ashibinaa OSAKA) · Jul 18 (Cybozu Osaka, 35F) · Aug 29 (R3 Institute). Topics rotate across web dev, AI/ML, QA, software architecture. Free; join via Meetup or Discord.
Lambda Kansai — Functional Programming
Regular reading groups (currently Functional Programming in Lean) and occasional in-person sessions. [10] Primarily online; Osaka-based community.
Kansai Developer Communities
| Community | Members | Frequency | Language | Source |
|---|---|---|---|---|
| Ruby Kansai | 1,400+ | 3–4×/yr | Japanese | [11] |
| PyData Osaka | 400+ | 3–4×/yr | Japanese | [11] |
| Osaka WDDM | 1,400+ | Monthly | English | [11] |
Watch List (Date TBD)
- Frontend Conference Kansai 2026 — Staff recruitment kickoff was Mar 2026; main event expected late 2026 (2025 edition: Nov 30). [12]
- Tech Osaka Summit 2027 — Jan 26–27, 2027, Grand Front Osaka North. Startup/innovation festival (3,500+ past attendees).
- JANOG58 — Biannual; July 2026 edition location TBD.