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 →Poly.Tech mini hackathon
Sep 11, 2026 - Sep 24, 2026
Prize Pool
$50
Graphiques Innovation Challenge
Aug 21, 2026 - Sep 23, 2026
Prize Pool
Non-cash Prize
3rd-Web-Hack
Aug 22, 2026 - Sep 27, 2026
Prize Pool
$750
Hack The Weather
Sep 20, 2026 - Sep 21, 2026
Prize Pool
$309
Next Gen Hackathon 2026 -Bengaluru
Sep 1, 2026 - Oct 23, 2026
Prize Pool
₹50.0K
Next Founders Hackathon
Aug 16, 2026 - Oct 15, 2026
Prize Pool
$275
Databricks AI Social Impact (DAISI) Challenge - Singapore
Sep 16, 2026 - Oct 6, 2026
Prize Pool
Non-cash Prize
Syntax Summit
Jul 18, 2026 - Jan 14, 2027
Prize Pool
Non-cash Prize
InfinityX Global Hackathon 2K26
Sep 15, 2026 - Sep 25, 2026
Prize Pool
Non-cash Prize
CSC Back-to-School Hackathon
Sep 4, 2026 - Oct 5, 2026
Prize Pool
$400
DSH Hacks V2 ($100k+ in prizes!)
Jun 24, 2026 - Nov 8, 2026
Prize Pool
Non-cash Prize
Code for Humanity
Jul 16, 2026 - Jan 15, 2027
Prize Pool
Non-cash Prize
Build, Ship, Shape: Amazon Developer Hackathon
Aug 31, 2026 - Oct 23, 2026
Prize Pool
$138.0K
Status: Upcominghackodisha-6.0
Oct 30, 2026 - Nov 1, 2026
Prize Pool
Non-cash Prize
Status: UpcomingQuantHacks
Oct 23, 2026 - Oct 24, 2026
Prize Pool
$75
Status: UpcomingWinter of Code 2026
Oct 14, 2026 - Nov 30, 2026
Prize Pool
Non-cash Prize
Status: UpcomingHefty-Hacks
Oct 23, 2026 - Oct 31, 2026
Prize Pool
Non-cash Prize
Status: ActiveBOSS Battle
Sep 6, 2026 - Oct 5, 2026
Prize Pool
Non-cash Prize
Zero Origin
Aug 27, 2026 - Sep 26, 2026
Prize Pool
₹2.5K
Evorozen Apex: NextGen AI Buildathon
Jul 17, 2026 - Sep 30, 2026
Prize Pool
Non-cash Prize