Online Web3 Hackathons
Participate from anywhere in the world. Browse online Web3 and blockchain hackathons, compete for prizes, and build innovative projects.
View all with full filters →NGN Hacks 2026
Aug 7, 2026 - Aug 9, 2026
Prize Pool
Non-cash Prize
VALSEA Edtech Sprint (HCM)
May 3, 2026 - May 6, 2026
Prize Pool
Non-cash Prize
OneAquaHealth IEEE Global Hackathon
Sep 14, 2026 - Oct 1, 2026
Prize Pool
$3.0K
Internal Tools Hacks
May 4, 2026 - May 13, 2026
Prize Pool
$1.7K
Design4Future
May 3, 2026 - May 31, 2026
Prize Pool
Non-cash Prize
WeatherWise Hack
May 10, 2026 - May 13, 2026
Prize Pool
$175
SUMMER HACKATHON 2026
Jun 1, 2026 - Jun 7, 2026
Prize Pool
Non-cash Prize
Design-A-Thon
May 21, 2026 - May 22, 2026
Prize Pool
Non-cash Prize
Assistive Innovation Challenge 2026
May 4, 2026 - Aug 1, 2026
Prize Pool
Non-cash Prize
Claude Builders Club - Hackathon 2026
May 2, 2026 - May 3, 2026
Prize Pool
Non-cash Prize
Build with AI Hack Days @UITS
May 11, 2026 - May 12, 2026
Prize Pool
Non-cash Prize
The Future of Health Hackathon
May 1, 2026 - May 2, 2026
Prize Pool
€11.8K
Women in STEM: Education Hackathon
May 1, 2026 - May 2, 2026
Prize Pool
$600
Build the Future with AI — From Code to No-Code
May 31, 2026 - Jun 30, 2026
Prize Pool
Non-cash Prize
Web Summit Vancouver Hackathon
May 13, 2026 - May 14, 2026
Prize Pool
Non-cash Prize
305 CodeStorm Edition May 2026
May 1, 2026 - May 31, 2026
Prize Pool
Non-cash Prize
Stanford & Ivy X Andover & Exeter Hackathon
May 11, 2026 - May 18, 2026
Prize Pool
$400
Cursor Hackathon Toronto Tech Week
May 26, 2026 - May 27, 2026
Prize Pool
Non-cash Prize
Clash of Prompts: Worlds 1st Real-Time Prompt Battle Royale
May 6, 2026 - May 7, 2026
Prize Pool
Non-cash Prize
Trend Hacker
May 1, 2026 - May 3, 2026
Prize Pool
$300