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 →PalmettoHacks
Oct 10, 2026 - Oct 11, 2026
Prize Pool
$2.5K
Hyperbloom October- UI/UX and Web Design
Oct 5, 2026 - Oct 12, 2026
Prize Pool
Non-cash Prize
HuskyHack 2026:Phase 1
Oct 16, 2026 - Oct 17, 2026
Prize Pool
$18.0K
Bridge The Gap Hacks
Nov 15, 2026 - Nov 21, 2026
Prize Pool
Non-cash Prize
Test Flight: Glasswing Ventures AI Hackathon
Sep 26, 2026 - Sep 27, 2026
Prize Pool
Non-cash Prize
TigerHacks 2026
Sep 24, 2026 - Sep 27, 2026
Prize Pool
Non-cash Prize
Hack Like W@CC 2026
Oct 17, 2026 - Oct 18, 2026
Prize Pool
Non-cash Prize
CommuniHacks
Nov 7, 2026 - Nov 8, 2026
Prize Pool
$3.2K
2026 AI for Good Hackathon
Oct 23, 2026 - Oct 25, 2026
Prize Pool
Non-cash Prize
Gator Quant Hacks
Oct 2, 2026 - Oct 4, 2026
Prize Pool
$25.0K
&HACKS XII
Sep 26, 2026 - Sep 27, 2026
Prize Pool
$800
Houston Hackathon 2026
Sep 25, 2026 - Sep 28, 2026
Prize Pool
Non-cash Prize
Hacks for Humanity
Oct 10, 2026 - Oct 11, 2026
Prize Pool
$6.3K
ImpactHack 2026
Oct 1, 2026 - Oct 8, 2026
Prize Pool
Non-cash Prize
HackFW: MADE Challenge
Oct 1, 2026 - Oct 30, 2026
Prize Pool
$1.9K
Planet Resilience: Innovation for Sustainable Impact Hackathon
Sep 28, 2026 - Oct 1, 2026
Prize Pool
$1.7K
Gator Hack V - AI Days 2026
Oct 23, 2026 - Oct 25, 2026
Prize Pool
$3.5K
Neighborhood Hacks
Oct 16, 2026 - Oct 24, 2026
Prize Pool
$9.7K
Dublin Hacx
Oct 3, 2026 - Oct 4, 2026
Prize Pool
$2.3K
Cosmo Hacks
Dec 18, 2026 - Dec 21, 2026
Prize Pool
$126.7K