Explore Open Hackathons 2026

Open hackathons welcome creators of all backgrounds, skills, and ideas to collaborate freely.
Explore Open hackathons online and in-person
IN-PERSON Sierra Hacks

Nov. 15, 2025

Date TBD

About the challenge Sierra Hacks is a 12 hour Hackathon open to any High Schoolers from the Bay Area to Central Valley. Over the course …

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beginner · mobile · web · Manteca, California, United States
IN-PERSON Women AI Hackathon

Nov. 15, 2025

Date TBD

The Women in AI Hackathon is a dynamic, inclusive event designed to spotlight and empower women and non-binary individuals building with artificial intelligence. This isn’t …

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machine learning · Seattle, Washington, United States
IN-PERSON Collabothon 2025

Nov. 14, 2025 - Nov. 16, 2025

Ended

Collabothon 2025 – discover the challenges! Ready for 48 hours of intense coding, innovation, and teamwork? It’s time to explore the challenges prepared for you …

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ai · beginner · design · education · fintech · machine learning · non-profit · Łódź, Łódź Voivodeship, Poland
IN-PERSON Collabothon 2025

Nov. 14, 2025 - Nov. 16, 2025

Ended

Collabothon 2025 – discover the challenges! Ready for 48 hours of intense coding, innovation, and teamwork? It’s time to explore the challenges prepared for you …

IN-PERSON STEM Energy Hackathon

Nov. 14, 2025

Date TBD

About the challenge "Energize the Future" is a three-day hybrid energy hackathon designed to empower young minds (ages 13-25) to tackle real-world renewable energy and …

ONLINE Code Spring

Nov. 13, 2025 - Jan. 23, 2026

Ended

This winter, innovation meets renewal. ❄️🌷CodeSpring Hackathon is not your typical weekend sprint , it’s a month-long innovation journey where ideas grow, evolve, and blossom …

ONLINE SportHack 2025 Innovation hackathon

Nov. 11, 2025 - Nov. 15, 2025

Ended

🎉 Welcome to SportHack 2025 — Ideas in Motion! 📅 November 11–15, 2025 💻 Online (Nov 11–14) + 🏟️ Onsite Demo Day @ Rīga Stradiņš …

IN-PERSON Hackabyte's 2025 Fall Hackathon (Date is TBD)

Nov. 8, 2025 - Nov. 9, 2025

Ended

Save the date for November 8th and November 9th for Hackabyte's 2025 Fall hackathon! As a nonprofit, we're all about sparking creativity, encouraging collaboration, and …

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iot · machine learning · Redmond, Washington, United States
IN-PERSON MountainHacks 2025

Nov. 8, 2025

Date TBD

A 12-hour hackathon for high-school students taking place on Nov 8th, 2025, at Mountain House High School! Open to all experience levels beginner or advanced, …

ONLINE Code the Past Hackathon

Nov. 8, 2025 - Nov. 9, 2025

Ended

About the challenge The Code the Past Hackathon is more than just a competition — it’s a launchpad for ideas that can shape the world. …

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