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 →CircuitBreak 2025
Jan 1, 2026 - Mar 31, 2026
Prize Pool
Non-cash Prize
AI For Good
Jan 31, 2026 - Feb 28, 2026
Prize Pool
₹60.0K
Global Innovation Build Challenge V1
Dec 13, 2025 - Feb 28, 2026
Prize Pool
Non-cash Prize
Hack for Humanity | 2026 (participation prizes!)
Feb 1, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize
Dev Season of Code
Jan 26, 2026 - Feb 28, 2026
Prize Pool
$4.0K
Next Byte Hacks: January 2026
Jan 15, 2026 - Feb 23, 2026
Prize Pool
$100
Hackonomics 2026
Jan 23, 2026 - Mar 30, 2026
Prize Pool
Non-cash Prize
DevStudio 2026 by Logitech
Jan 21, 2026 - Feb 25, 2026
Prize Pool
$20.0K
DigitalOcean Gradient™ AI Hackathon
Jan 28, 2026 - Mar 18, 2026
Prize Pool
$20.0K
Byte 2 Beat
Dec 5, 2025 - Feb 28, 2026
Prize Pool
$1.5K
Elasticsearch Agent Builder Hackathon
Jan 22, 2026 - Feb 27, 2026
Prize Pool
$20.0K
Dev_Dash
Jan 26, 2026 - Feb 28, 2026
Prize Pool
$10.0K
Airia AI Agents Hackathon
Feb 16, 2026 - Mar 19, 2026
Prize Pool
$7.0K
Codorra
Apr 16, 2026 - Apr 26, 2026
Prize Pool
₹400.0K
Status: ActiveBLI Legal Tech Hackathon 2
Feb 27, 2026 - Nov 1, 2026
Prize Pool
$50.0K
Status: EndedSomnia Reactivity Mini Hackathon
Feb 24, 2026 - Mar 20, 2026
Prize Pool
$3.0K
Status: EndedBUIDL BATTLE #2 | The Bitcoin Builders Tournament
Mar 2, 2026 - Mar 20, 2026
Prize Pool
$20.0K
GitLab AI Hackathon
Feb 8, 2026 - Mar 24, 2026
Prize Pool
$65.0K
Gemini Live Agent Challenge
Feb 15, 2026 - Mar 15, 2026
Prize Pool
$80.0K
Amazon Nova AI Hackathon
Feb 1, 2026 - Mar 15, 2026
Prize Pool
$40.0K