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 →CBC Hackathon 2026 @ NJIT
Apr 25, 2026 - Apr 26, 2026
Prize Pool
$300
CatHacks XII
Apr 24, 2026 - Apr 25, 2026
Prize Pool
Non-cash Prize
SJHacks 2026
Apr 25, 2026 - Apr 26, 2026
Prize Pool
Non-cash Prize
BeanHacks
Jun 30, 2026 - Jul 1, 2026
Prize Pool
Non-cash Prize
Hack-A-Damien
Apr 25, 2026 - Apr 26, 2026
Prize Pool
Non-cash Prize
Geospatial Video Intelligence Hackathon
Apr 25, 2026 - Apr 26, 2026
Prize Pool
$3.3K
IDEA Hacks 2026
Apr 25, 2026 - Apr 26, 2026
Prize Pool
Non-cash Prize
USAII Global Hackathon 2026
Jun 14, 2026 - Jun 21, 2026
Prize Pool
$15.0K
2026 Cornell Claude Builders Club Hackathon
Apr 24, 2026 - Apr 25, 2026
Prize Pool
$1.5K
Tech Builders Program
Apr 23, 2026 - Apr 27, 2026
Prize Pool
$4.0K
Bharat Bricks Hacks 2026: IIT Madras
Apr 24, 2026 - Apr 25, 2026
Prize Pool
₹250.0K
SMCCD 2026 Hackathon
Apr 23, 2026 - Apr 24, 2026
Prize Pool
$600
CodeStorm
Apr 24, 2026 - May 28, 2026
Prize Pool
Non-cash Prize
HackBelfast
Apr 25, 2026 - Apr 26, 2026
Prize Pool
£6.2K
Test Kean Hackathon
Apr 23, 2026 - Apr 24, 2026
Prize Pool
$1.5K
Far Away
Jun 1, 2026 - Jun 25, 2026
Prize Pool
Non-cash Prize
MontyHacks IX
May 29, 2026 - May 30, 2026
Prize Pool
Non-cash Prize
The Silicon Valley Hackathon: Perfect Corp x Pegasus
Apr 23, 2026 - May 7, 2026
Prize Pool
$2.5K
Compton Tech Week 2026 Hackathon
Apr 23, 2026 - Apr 24, 2026
Prize Pool
$550
bunq Hackathon 7.0 - Multimodal AI
Apr 24, 2026 - Apr 25, 2026
Prize Pool
€8.0K