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 Days Ankara: Build with Gemini
May 19, 2026 - May 20, 2026
Prize Pool
Non-cash Prize
natIgnite 2026
May 8, 2026 - May 10, 2026
Prize Pool
Non-cash Prize
The Climate Change-Makers Challenge: 2026
Apr 3, 2026 - Apr 6, 2026
Prize Pool
$2.5K
Databricks_Accenture_Hackathon
Mar 9, 2026 - Apr 15, 2026
Prize Pool
Non-cash Prize
DeveloperWeek New York 2026 Hackathon
May 25, 2026 - Jun 10, 2026
Prize Pool
Non-cash Prize
DeVQueens
Apr 1, 2026 - Apr 2, 2026
Prize Pool
₹35.0K
Quantum Sprint
Mar 5, 2026 - Mar 30, 2026
Prize Pool
$5.0K
Claude AI Hackathon - Machines of Loving Grace
Mar 5, 2026 - Mar 7, 2026
Prize Pool
Non-cash Prize
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