Join Startup Hackathons 2025

Join startup hackathons to validate ideas, form teams, build MVPs, and pitch to real investors.
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IN-PERSON HACK:XR+AI 2025

Nov. 13, 2025 - Nov. 15, 2025

Ended

Immersive Realities Hackathon 2025: XR meets AI13–15 November 2025 | Munich & Online The Immersive Realities Hackathon 2025 is a dynamic, interdisciplinary event where students …

ONLINE Dakar Bitcoin Hack

Sept. 22, 2025 - Oct. 24, 2025

Ended

About the challenge The hackathon will be a public non-profit event gathering more than 100 participants to develop business and technical innovative solutions using Bitcoin …

IN-PERSON The Icebreaker Defence Tech Hackathon

Sept. 20, 2025

Ended

About the Hackathon The Icebreaker's Defence Tech Hackathon is a catalyst to jumpstart a world-class ecosystem that builds sovereign capability in Canada. Our goal is …

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databases · machine learning · Toronto, Ontario, Canada
ONLINE Starknet Re{Solve} Hackathon

Sept. 15, 2025 - Oct. 16, 2025

Ended

The next wave of crypto will need to be able to scale to millions and remain secure. Think about global payment systems with sub-cent fees, …

IN-PERSON OESTECH Hackfest 2025 (Puerto Rico)

Sept. 9, 2025 - Sept. 25, 2025

Ended

Main Description OESTECH Hackfest 2025 is a premier innovation challenge in Puerto Rico, designed to inspire, empower, and connect the next generation of entrepreneurs, engineers, …

IN-PERSON FOAK Climate Hackathon

Aug. 23, 2025 - Aug. 24, 2025

Ended

​What does it take to get a first-of-a-kind (FOAK) climate infrastructure project off the ground? ​From capital stacking to site selection, startups face daunting hurdles …

IN-PERSON Outside LLMs 2025

July 27, 2025

Ended

This event started as Outside Hacks in 2013. Previous participants have gone on to sell their companies to Nvidia and Apple and get their music …

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machine learning · mobile · web · San Francisco, California, United States
IN-PERSON Speaking with Machines

June 21, 2025

Ended

One rule - don't build UIs. ​Date: Saturday June 21, 2025 ​Location: Completely virtual - join from anywhere ​Timing: 8 hour hackathon with kick off …

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design · machine learning · web · San Francisco, California, United States
ONLINE FutureX Startup Cult

May 24, 2025 - May 25, 2025

Ended

FutureX Startup Cult isn’t your typical hackathon. It’s a 48-hour online challenge where students, solo builders, and first-time founders turn raw ideas into real startups …

IN-PERSON Proving Ground: Agentic Startup Hackathon

May 16, 2025 - May 18, 2025

Ended

IMPORTANT: Thanks for your interest in the Proving Ground Hackathon! While you can register on Devpost, all participants must complete our application process to be …

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enterprise · Palo Alto, California, United States

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