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 →Hack Day in UPJŠ
Mar 25, 2026 - Mar 26, 2026
Prize Pool
Non-cash Prize
JSS Navotthana 2.0
Apr 10, 2026 - Apr 11, 2026
Prize Pool
₹40.0K
HackZard 2.0 Hackathon
May 1, 2026 - May 10, 2026
Prize Pool
$5.0K
SUNHACKS 2K26
Mar 26, 2026 - Apr 5, 2026
Prize Pool
₹82.0K
Innovatera Hackathon
Mar 25, 2026 - Mar 27, 2026
Prize Pool
$17.5K
2026 Spring Claude Builder Hackathon @ TCD
Mar 26, 2026 - Mar 27, 2026
Prize Pool
Non-cash Prize
STEMINATE HACKS 2026
Jun 7, 2026 - Jun 13, 2026
Prize Pool
Non-cash Prize
Hackabury 2026
Jun 1, 2026 - Jun 2, 2026
Prize Pool
Non-cash Prize
NJx Hackathon 2026
Apr 11, 2026 - Apr 12, 2026
Prize Pool
$500
UnitedAI Hackathon
Mar 28, 2026 - Mar 29, 2026
Prize Pool
$1.5K
NTHS Hack 2026: Hack the next frontier
Mar 27, 2026 - Mar 28, 2026
Prize Pool
$1.3K
Obserc Safety Hackathon
Mar 27, 2026 - Apr 11, 2026
Prize Pool
Non-cash Prize
Predict4Good Hackathon
Mar 28, 2026 - Apr 10, 2026
Prize Pool
Non-cash Prize
Ponderosa Hacks
Mar 27, 2026 - Mar 28, 2026
Prize Pool
Non-cash Prize
Code Fest
Apr 27, 2026 - Apr 28, 2026
Prize Pool
Non-cash Prize
OpenClaw Hackathon Vienna
Mar 27, 2026 - Mar 28, 2026
Prize Pool
Non-cash Prize
Multimodal Frontier Hackathon
Mar 27, 2026 - Mar 28, 2026
Prize Pool
$7.7K
Stupid Ideas Hackathon (Toronto W26)
Mar 27, 2026 - Mar 28, 2026
Prize Pool
Non-cash Prize
HackFest 2026
Mar 24, 2026 - Mar 25, 2026
Prize Pool
Non-cash Prize
High Stakes Gamathon
Apr 1, 2026 - Apr 2, 2026
Prize Pool
Non-cash Prize