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 →Convergence
Mar 28, 2026 - Mar 29, 2026
Prize Pool
$1.0K
Developers Connect
Mar 28, 2026 - Apr 5, 2026
Prize Pool
Non-cash Prize
Bharat Bricks Hacks 2026: IIT Bombay
Mar 28, 2026 - Mar 29, 2026
Prize Pool
₹250.0K
Status: EndedStellar Hacks: Agents
Mar 30, 2026 - Apr 13, 2026
Prize Pool
$10.0K
Octoverse Hackathon
Mar 27, 2026 - Mar 30, 2026
Prize Pool
$4.8K
Hack to the Future
Mar 27, 2026 - Mar 29, 2026
Prize Pool
$700
Data Grand Prix 2026
Mar 27, 2026 - Mar 28, 2026
Prize Pool
Non-cash Prize
MSA Hacks
Mar 27, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
AWS Kiro x CS Careers Hackathon at Virginia Tech
Mar 27, 2026 - Mar 28, 2026
Prize Pool
Non-cash Prize
Webster Hackfest 2026
Mar 27, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
Splunk AI Hackathon
May 18, 2026 - Jun 15, 2026
Prize Pool
$20.0K
AetherAI Summit Hackathon 2026
Mar 27, 2026 - Apr 11, 2026
Prize Pool
$4.8K
HACK THE WU
Mar 25, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
Social Impact BuildFest 2026 - UMD
Mar 27, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
CortexX Global Hackathon 2026
Mar 27, 2026 - Apr 18, 2026
Prize Pool
$5.0K
CodePup HackFest
Mar 26, 2026 - Mar 27, 2026
Prize Pool
$1.0K
MLH HACKDAY GREATER NOIDA
Apr 3, 2026 - Apr 4, 2026
Prize Pool
Non-cash Prize
CISSA Design Blitz 2026
Mar 27, 2026 - Mar 28, 2026
Prize Pool
$600
Octoverse Hackathon
Apr 4, 2026 - Apr 5, 2026
Prize Pool
$5.0K
Hack Day in UPJŠ
Mar 25, 2026 - Mar 26, 2026
Prize Pool
Non-cash Prize