Explore UI Hackathons 2026

Craft beautiful, intuitive user interfaces at UI hackathons focused on layout, interaction, and polish.
Explore Ui hackathons online and in-person
IN-PERSON SASEHacks 2026

March 7, 2026 - March 8, 2026

Ended

Welcome to SASEHacks, a 24-hour long hackathon where you have the chance to build software or hardware that solves a real-world problem, showcases technical creativity, …

IN-PERSON Pulse AI NYC X CASTGNY Hackathon

March 7, 2026

Date TBD

GEO Agent – Generative Engine Optimization for the AI Era This hackathon is about building the GEO Agent, an AI-powered system that measures and improves …

IN-PERSON Find My Force - RedTeam Hackathon Series

March 7, 2026

Date TBD

In contested electromagnetic environments, the ability to detect, classify, and locate RF emitters is a core signals intelligence (SIGINT) capability. Operators need to rapidly answer: …

ONLINE BACSA Hacks

March 7, 2026 - March 8, 2026

Ended

About the challenge BACSA Hacks is a 1-day, in-person hackathon hosted by the Biotech and Computer Science Association (BACSA) based at the University of Toronto. …

IN-PERSON The Midwest Blockathon

March 6, 2026 - March 8, 2026

Ended

The Midwest Block-a-Thon is a 20-hour blockchain-focused hackathon hosted at the University of Kansas aimed at fostering innovation and collaboration among hackers of all ages …

ONLINE Global Engineering Hackathon

March 6, 2026 - March 13, 2026

Ended

The Global Engineering Hackathon brings together developers, designers, and builders from around the world to create innovative solutions in a limited time. Participants will collaborate, …

ONLINE TreeLine Hacks

March 6, 2026 - March 8, 2026

Ended

Note: We are looking for sponsors. Email [email protected] if interested! About the challenge Treeline Hacks invites you to tackle real-world problems in a 36-hour sprint—no …

IN-PERSON AeroHacks 2026

March 6, 2026 - March 7, 2026

Ended

About the challenge AeroHacks is a fast-paced, beginner-friendly hackathon where creativity meets technology. Whether you're building your first project or pushing an idea you've had …

ONLINE EcoHacks

March 6, 2026 - April 12, 2026

Ended

EcoHacks is an online environmental STEM hackathon hosted by Green Spaces Initiative. This hackathon challenges students in grades 8–12 to build creative projects that help …

IN-PERSON comma_hack (six)

March 6, 2026 - March 27, 2026

Ended

comma_hack is back. A weekend of hacking on the present and future of openpilot — cars, bodies, and whatever else you can strap a comma …

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