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 →BuildYourSeat
Apr 6, 2026 - Apr 8, 2026
Prize Pool
Non-cash Prize
PMC Power Platform Product Sprint 2026
Apr 3, 2026 - Apr 4, 2026
Prize Pool
Non-cash Prize
Ignite
Apr 3, 2026 - Apr 4, 2026
Prize Pool
Non-cash Prize
Creative Lab: AI Coding Hackathon @ UCSD (TRAE & Z.ai)
Mar 31, 2026 - Apr 1, 2026
Prize Pool
Non-cash Prize
WildHacks
Apr 11, 2026 - Apr 12, 2026
Prize Pool
Non-cash Prize
CodeQuantum 2026
Mar 27, 2026 - Mar 28, 2026
Prize Pool
Non-cash Prize
Pulse Foundry AI Healthcare Hackathon
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
Build Your Startup in 72 Hours | IDEANIX Launchpad
Apr 4, 2026 - Apr 6, 2026
Prize Pool
₹18.0K
StarHack
Mar 28, 2026 - Mar 29, 2026
Prize Pool
$1.3K
Blu's Hacks 2026
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
Hack NMSU
Apr 9, 2026 - Apr 10, 2026
Prize Pool
$1.0K
HackMHC++
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
STACS Hack 2026
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
HackNewHaven 2026
Mar 28, 2026 - Mar 29, 2026
Prize Pool
$1.0K
Video Intelligence for Media and Entertainment Hackathon
Mar 28, 2026 - Mar 29, 2026
Prize Pool
$2.3K
CreateRU 2026
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
SolHacks 2026
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
VikingHacks 2026
Mar 27, 2026 - Mar 28, 2026
Prize Pool
Non-cash Prize
Build4Good
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
Philadelphia Social Justice Hackathon 2026
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize