Explore Open Hackathons 2026

Open hackathons welcome creators of all backgrounds, skills, and ideas to collaborate freely.
Explore Open hackathons online and in-person
ONLINE Nittany AI Challenge 2026

Dec. 18, 2025 - Jan. 9, 2026

Ended

Open to current Penn State undergraduate and graduate students only. Anyone that is not a Penn State student will be removed. The Nittany AI Challenge …

IN-PERSON AI Hack Night - Let’s build AI Agents

Dec. 17, 2025

Date TBD

About This Event (Only in-person) Event page: https://luma.com/77my776e ​AI Hack Night is a hands-on mini hack event for builders, PMs, designers, and innovators to explore …

ONLINE Gemini 3 Hackathon

Dec. 17, 2025 - Feb. 9, 2026

Ended

Welcome to the era of Gemini 3. Google DeepMind is thrilled to invite you to the Gemini 3 global hackathon. We are pushing the boundaries …

ONLINE CJCP Hacks - 25-26

Dec. 16, 2025 - Feb. 16, 2026

Ended

🔍 ABOUT THE CHALLENGE: Welcome to CJCP Hacks-Online, a 2-month long coding marathon! We are excited to see what applications you all develop and come …

IN-PERSON Bitcoin++ Sovereignty Edition

Dec. 16, 2025

Date TBD

Welcome to the Bitcoin++ Sovereignty Edition Hackathon! This is the hackathon site for the bitcoin++ sovereignty edition hackathon in Taipei, Taiwan.The main hackathon competition will …

IN-PERSON HackHorizon

Dec. 15, 2025 - Dec. 17, 2025

Ended

Main Description Type Mini Hackathon is a quick, high-energy building sprint focused on GitHub, open-source collaboration, and GitHub Copilot. Participants create fun, impactful projects while …

IN-PERSON CODE FIESTA

Dec. 15, 2025 - Dec. 18, 2025

Ended

Main Description Type Mini Hackathon is a quick, high-energy building sprint focused on GitHub, open-source collaboration, and GitHub Copilot. Participants create fun, impactful projects while …

IN-PERSON codesync

Dec. 14, 2025

Date TBD

Main Description Type Mini Hackathon is a quick, high-energy building sprint focused on GitHub, open-source collaboration, and GitHub Copilot. Participants create fun, impactful projects while …

ONLINE Launchly Project Sprint

Dec. 14, 2025 - Dec. 31, 2025

Ended

TO PARTICIPATE IN THIS HACKATHON, YOU MUST FILL OUT THIS GOOGLE FORM (https://forms.gle/edp22HwCrcFqmrrS8) Launchly Project Sprint is a hackathon powered by Launchly, a platform designed …

ONLINE DeepSeek vs. Llama: The "Kill The Cloud" Challenge

Dec. 13, 2025 - Jan. 30, 2026

Ended

The era of renting intelligence is over. Why pay per token? Why wait for latency? Why hand your user's data to a massive corporation? We …

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