SXRevenueCat Events
Shipaton x HACK.BAR Night in 大阪｜世界最大級のモバイルアプリハッカソン「Shipaton 2026」（優勝賞金 約1600万円・賞金総額 約1.6億円）
8–9 Sep 2026 · Osaka
10 upcomingnext up · 9 sep · osaka
hackathon
japan
Hackathons in Japan 2026 — every upcoming hackathon in the country: dates, prizes and registration links. Updated weekly.
updated weekly · free
upcoming hackathons
SEP8
Shipaton x HACK.BAR Night in 大阪｜世界最大級のモバイルアプリハッカソン「Shipaton 2026」（優勝賞金 約1600万円・賞金総額 約1.6億円）
ENDS TODAYdetails
OJRevenueCat Events
Osaka/Japan🇯🇵 説明会開催！君のアプリで世界を獲れ in 大阪｜世界最大級のモバイルアプリハッカソン「Shipaton 2026」（優勝賞金 約1600万円・賞金総額 約1.6億円）
9 Sep 2026 · Osaka
SEP9
Osaka/Japan🇯🇵 説明会開催！君のアプリで世界を獲れ in 大阪｜世界最大級のモバイルアプリハッカソン「Shipaton 2026」（優勝賞金 約1600万円・賞金総額 約1.6億円）
TODAYdetails
TATokyo AI (TAI)
Tokyo AI (TAI) | OpenAI : 100-Hour Game Builder Challenge
11–17 Sep 2026 · Tokyo
PRIZE$100,000+
SEP11
Tokyo AI (TAI) | OpenAI : 100-Hour Game Builder Challenge
IN 2 DAYS$100,000+ prizedetails
BYPerxona (XRSPACE CO., LTD.)
Build Your Own AI Avatar - Hackathon for Developers & Vibe Coders #Hackvatar
12 Sep 2026 · Tokyo
SEP12
Build Your Own AI Avatar - Hackathon for Developers & Vibe Coders #Hackvatar
IN 3 DAYSdetails
DHAI Builders
Daytona HackSprint Tokyo ハッカソン東京
12 Sep 2026 · Tokyo
SEP12
Daytona HackSprint Tokyo ハッカソン東京
IN 3 DAYSdetails
SAKikuviカレンダー
Subako.AI Hackathon
14 Sep 2026 · Tokyo
SEP14
Subako.AI Hackathon
IN 5 DAYSdetails
AFAI Founders' Mindset Community
AI Founders Mindset Hackathon #001 - Build AI Agents to Solve Real Enterprise Problems Co-Hosted by Datadog
18 Sep 2026 · Tokyo
SEP18
AI Founders Mindset Hackathon #001 - Build AI Agents to Solve Real Enterprise Problems Co-Hosted by Datadog
IN 9 DAYSdetails
AFAIMovieStudio (Creative Community to learn AI, Film, Arts)
AI Film Hackathon in Tokyo - September 2026
27 Sep 2026 · Tokyo
SEP27
AI Film Hackathon in Tokyo - September 2026
IN 18 DAYSdetails
GGStartup Lady Japan
Go Global Hub #1 Discover Global Challenges
30 Sep 2026 · Tokyo
SEP30
Go Global Hub #1 Discover Global Challenges
IN 21 DAYSdetails
SHCode for Japan
Social Hack Day #78
24 Oct 2026 · Tokyo
OCT24
Social Hack Day #78
IN 45 DAYSdetails
past hackathons
// 1 past hackathons — browse events
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about
We're building a comprehensive hackathon directory for Japan — a single place to find every build weekend, jam and design challenge in the country, in Tokyo and beyond.
We aggregate events from Luma, Eventbrite, Meetup, Devpost and direct submissions so you never miss a hackathon happening near you.
Have a hackathon to list? submit it here — live within 24 hours.
faq
How do I submit a hackathon?+
Use the Submit Hackathon button in the header. Give us the name, dates, city, registration link and a banner if you have one — we review and publish within 24 hours.
Is it free to list a hackathon?+
Yes. Standard listings are free forever. Get Featured is a paid option that pins your event to the top of the directory.
How often is the directory updated?+
Weekly. We sweep Luma, Eventbrite, Meetup and Devpost once a week, and direct submissions are reviewed the same day.
Why is there no city page?+
Because the calendar is overwhelmingly in the Tokyo metropolitan area. Events in the 23 wards, Kawasaki, Yokohama, Chiba, Saitama and Tsukuba all browse under Tokyo; Osaka, Kyoto, Nagoya, Fukuoka and Sapporo keep their own name on the card and get pages of their own once they carry enough events to fill one. The split that does carry information — in person against online — is a filter on this page.
Can I attend online hackathons?+
Yes, when one is listed — including events run from elsewhere in Asia that accept teams in Japan. The Online chip in the browse column shows them.