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 →Hack2Impact 2026
May 2, 2026 - May 3, 2026
Prize Pool
Non-cash Prize
Zero to One Startup-a-thon
Apr 15, 2026 - Apr 24, 2026
Prize Pool
$5.8K
demo
Apr 22, 2026 - Apr 24, 2026
Prize Pool
$5
KODA Hacks 2026
Jun 6, 2026 - Jun 10, 2026
Prize Pool
Non-cash Prize
Build for the Border - Immigrant Hackathon NYC
May 8, 2026 - May 9, 2026
Prize Pool
Non-cash Prize
NextGenHacks
Apr 21, 2026 - Jun 2, 2026
Prize Pool
$1.0K
Paris Fintech Hackathon 2026
Apr 25, 2026 - Apr 26, 2026
Prize Pool
$21.0K
Social Services and AI Hackathon
Apr 21, 2026 - Apr 25, 2026
Prize Pool
$1.0K
HACKSTORM 2.0: Vibe Coding to Physical AI
May 22, 2026 - May 24, 2026
Prize Pool
$6.0K
Pulse Foundry AI Hackathon Volume 3
Apr 18, 2026 - Apr 19, 2026
Prize Pool
Non-cash Prize
Kindly labs weekly hackathon
Apr 19, 2026 - Apr 25, 2026
Prize Pool
Non-cash Prize
AIVENTRA
Apr 19, 2026 - Apr 26, 2026
Prize Pool
₹45.0K
EurekaHacks 2026
May 1, 2026 - May 2, 2026
Prize Pool
Non-cash Prize
Give It a Face - Design × Dev Hackathon
May 15, 2026 - May 16, 2026
Prize Pool
Non-cash Prize
Ventura Challenge
Jul 6, 2026 - Jul 24, 2026
Prize Pool
Non-cash Prize
Your idea vs 1,000 other marketers. Let’s see where you actually stand.
Jun 14, 2026 - Jun 29, 2026
Prize Pool
₹10.0K
Innovate for Impact - NGM Group
May 11, 2026 - May 13, 2026
Prize Pool
Non-cash Prize
MarinHacks
Aug 1, 2026 - Aug 2, 2026
Prize Pool
Non-cash Prize
Innolympics 2026: GDGoC PLM Hackathon
Apr 24, 2026 - Apr 25, 2026
Prize Pool
$390
Hack Your Life
May 30, 2026 - May 31, 2026
Prize Pool
Non-cash Prize