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 →UWB Hacks: The Future!
Apr 25, 2026 - Apr 26, 2026
Prize Pool
Non-cash Prize
Durham College Hackathon 2026
Mar 14, 2026 - Mar 15, 2026
Prize Pool
$875
DevNetwork [AI + ML] Hackathon 2026
May 11, 2026 - May 28, 2026
Prize Pool
Non-cash Prize
GenAI Zürich Hackathon 2026
Mar 2, 2026 - Mar 18, 2026
Prize Pool
€10.9K
HackAmerica
Apr 11, 2026 - Apr 18, 2026
Prize Pool
$1.2K
Hack The East
Feb 27, 2026 - Feb 28, 2026
Prize Pool
$107.0K
HackSussex 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
TreeLine Hacks
Mar 6, 2026 - Mar 8, 2026
Prize Pool
$1.0K
Authorized to Act: AI Agents with Auth0
Feb 23, 2026 - Apr 7, 2026
Prize Pool
$10.0K
LaunchHacks V
Jun 6, 2026 - Jun 7, 2026
Prize Pool
Non-cash Prize
GDE MIT - Minds & Machines Hackathon
Feb 27, 2026 - Feb 28, 2026
Prize Pool
€13.0K
Hack For Humanity 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$12.0K
MEGA Hackathon 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
EnviroCast Global Engineering Outlook: From Insight to Impact Hackathon
Feb 16, 2026 - May 21, 2026
Prize Pool
$625
FigBuild 2026
Mar 6, 2026 - Mar 9, 2026
Prize Pool
$30.0K
Smart Innovation 2026
Feb 23, 2026 - Mar 21, 2026
Prize Pool
₹75.0K
TestHack
Feb 21, 2026 - Mar 1, 2026
Prize Pool
$10
Open Sourcery S26 Showcase
Feb 9, 2026 - May 4, 2026
Prize Pool
Non-cash Prize
Sunflower Hackathon 2026
Jan 28, 2026 - Apr 14, 2026
Prize Pool
Non-cash Prize
ACUHIT
Feb 20, 2026 - Mar 5, 2026
Prize Pool
$7.0K