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 →Creator Colosseum: The Startup Showdown
Sep 20, 2026 - Oct 10, 2026
Prize Pool
$29.9K
HACK47: OFFGRID
Sep 15, 2026 - Oct 15, 2026
Prize Pool
Non-cash Prize
Next Byte Hacks: V4
Sep 5, 2026 - Sep 30, 2026
Prize Pool
$100
CAST-GNY Startup Pitch Competition 2026
Sep 1, 2026 - Sep 22, 2026
Prize Pool
Non-cash Prize
Hyperbloom September - Beginer Freindly
Sep 14, 2026 - Sep 23, 2026
Prize Pool
Non-cash Prize
InnovArt 2027: Art and Technology Hack Day
Aug 23, 2026 - Jan 2, 2027
Prize Pool
Non-cash Prize
Hack Away Hunger: Food Insecurity Challenge
Jul 18, 2026 - Oct 8, 2026
Prize Pool
$5.0K
CityCamp Gainesville Hack Day
Sep 20, 2026 - Sep 23, 2026
Prize Pool
$900
Acodemic X G.I.R.L.S. Global SDG Hackathon
Sep 19, 2026 - Sep 27, 2026
Prize Pool
$35
Practice to Create [Feedback To All Projects!]
Sep 3, 2026 - Sep 25, 2026
Prize Pool
Non-cash Prize
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