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 →UNIHACK 2026, funded by the European Union
Mar 4, 2026 - Mar 15, 2026
Prize Pool
$7.0K
LUMA Hackathon: Pitch your idea, win $250 cash!
Mar 25, 2026 - Apr 26, 2026
Prize Pool
$250
Boson AI Higgs Audio Hackathon in collaboration with Eigen AI
Mar 20, 2026 - Mar 22, 2026
Prize Pool
Non-cash Prize
CPP SOC Hackathon
Mar 4, 2026 - Mar 5, 2026
Prize Pool
Non-cash Prize
FoundersHack Sydney 2026
Mar 19, 2026 - Mar 22, 2026
Prize Pool
$3.0K
Pulse AI NYC X CASTGNY Hackathon
Mar 6, 2026 - Mar 7, 2026
Prize Pool
Non-cash Prize
PES AWS Hackathon With AWS User Group Madurai and Bengaluru
Mar 4, 2026 - Mar 15, 2026
Prize Pool
Non-cash Prize
Agents Assemble - The Healthcare AI Endgame
Mar 4, 2026 - May 11, 2026
Prize Pool
$25.0K
Maestro Hack Day
Mar 4, 2026 - Mar 7, 2026
Prize Pool
Non-cash Prize
LIUX-Talent-Hackathon
Mar 10, 2026 - Mar 12, 2026
Prize Pool
Non-cash Prize
Status: EndedInjective Africa Buildathon
Mar 8, 2026 - Mar 21, 2026
Prize Pool
$2.0K
PantherHack 2026
Apr 17, 2026 - Apr 19, 2026
Prize Pool
$250
hackUMBC Mini Hackathon
Apr 17, 2026 - Apr 18, 2026
Prize Pool
Non-cash Prize
DUWiT Hacks 2026
Mar 7, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize
Hack Brooklyn
Apr 17, 2026 - Apr 19, 2026
Prize Pool
Non-cash Prize
ImpactHacks by Hackathon for All
Apr 5, 2026 - Apr 6, 2026
Prize Pool
$1.0K
AdaHacks 2026
Mar 6, 2026 - Mar 8, 2026
Prize Pool
$1.2K
UW Tech Exploration Lab Digital Health Challenge
Mar 20, 2026 - Apr 6, 2026
Prize Pool
$1.8K
Hack Days in the 6ix
Mar 6, 2026 - Mar 7, 2026
Prize Pool
Non-cash Prize
BAM Hacks
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize