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
ONLINE Winter Pitchfest | High School Startup Pitch | $1600+ prizes | THIS WEEKEND

Jan. 17, 2026 - Jan. 18, 2026

Ended

You are required to register at tinyurl.com/WinterPitchfestSignup The Pitchfest is held live over Zoom at tinyurl.com/PitchfestWinter About the challenge Step into the future of technology …

IN-PERSON HackFRee 2026

Jan. 17, 2026

Date TBD

About the challenge HackFRee follows a traditional hackathon format designed to support all experience levels. This year’s theme, Innovating for Life, Community, and Beyond, invites …

IN-PERSON Agentic Orchestration Hack

Jan. 16, 2026

Date TBD

🎤 Showcase Your Vision: Utilize at least 3 sponsor tools to build your agent You will have 3 minutes to demo your project. Impress us …

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audio · iot · web · In-person
IN-PERSON HackDay Butwal

Jan. 16, 2026 - Jan. 17, 2026

Ended

HackDay Butwal is a one-day event where students and young developers come together to build projects in a focused and friendly environment. The goal is …

IN-PERSON Hack the Bias 2026

Jan. 16, 2026 - Jan. 18, 2026

Ended

About the challenge Hack the Bias is a 36-hour community-powered hackathon created for students, technologists, and activists who want to build solutions that tackle real-world …

ONLINE EcoCompute

Jan. 16, 2026 - Jan. 20, 2026

Ended

About the challenge EcoCompute is a hackathon focused on building AI-powered applications that help protect, understand, or restore our environment. Participants will design intelligent solutions …

IN-PERSON CookHealthyHackathon

Jan. 16, 2026

Date TBD

About the challenge he CookHealthy Hackathon challenges students and innovators to build technology-driven solutions that make healthy eating more accessible, affordable, and sustainable. Many people …

ONLINE vibe coder hackathon

Jan. 15, 2026 - Jan. 31, 2026

Ended

🚀 Welcome to Vibe Code Hackathon 2026 Code with Dev. Build with Soul. Vibe Code Hackathon isn't just another coding competition—it’s where creativity meets logic. …

IN-PERSON Nexa × Qualcomm On-Device Bounty Program — Mobile

Jan. 15, 2026 - Feb. 16, 2026

Ended

About the challenge On-device AI will be everywhere in 2026. If you’re a builder, this is your chance to be early—and ship something real. Build …

ONLINE The Reddit Daily Games Hackathon

Jan. 15, 2026 - Feb. 12, 2026

Ended

Overview Reddit is hosting a virtual hackathon from January 15th to February 12th. We’re offering developers $40,000 in prizes for games built to delight users …

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