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 →Build With AI Hack Days @RU
Jul 15, 2026 - Jul 16, 2026
Prize Pool
Non-cash Prize
NEOMA AI Hackathon 2026
Jul 6, 2026 - Jul 7, 2026
Prize Pool
Non-cash Prize
Brainwave 2026 – X402 Blockchain Track
Jul 3, 2026 - Aug 21, 2026
Prize Pool
₹100.0K
YouCam API Skin AI & Apparel VTO Hackathon
Jul 6, 2026 - Aug 17, 2026
Prize Pool
$6.0K
OurPlanet.Rocks
Aug 7, 2026 - Aug 9, 2026
Prize Pool
$1.0K
Build with DataHub: The Agent Hackathon
Jul 6, 2026 - Aug 10, 2026
Prize Pool
$20.5K
Kuki Designed group
Jul 1, 2026 - Jul 31, 2026
Prize Pool
$1.3K
Katy Youth Hacks 2026
Aug 1, 2026 - Aug 3, 2026
Prize Pool
Non-cash Prize
DevsUnite Hiring Hackathon
Jul 24, 2026 - Jul 25, 2026
Prize Pool
₹3.0K
Aethera Hacks
Jul 9, 2026 - Jul 18, 2026
Prize Pool
Non-cash Prize
Status: EndedMUBA Blockchain Hackathon
Aug 26, 2026 - Sep 5, 2026
Prize Pool
Non-cash Prize
CockroachDB × AWS Hackathon - Build with Agentic Memory
Jun 30, 2026 - Aug 18, 2026
Prize Pool
$8.8K
Hack with AI
Jul 18, 2026 - Jul 19, 2026
Prize Pool
₹500
MCP test
Jun 29, 2026 - Aug 5, 2026
Prize Pool
Non-cash Prize
ML Empowerment Build Challenge 2.0
Jun 30, 2026 - Jul 31, 2026
Prize Pool
Non-cash Prize
Status: EndedPort Mortem 2026 - Code Resurrection Hackathon
Jul 31, 2026 - Aug 3, 2026
Prize Pool
Non-cash Prize
GTPN Hackathon 2026
Aug 7, 2026 - Aug 9, 2026
Prize Pool
Non-cash Prize
Technoviz Summer of Code
Jun 28, 2026 - Jun 30, 2026
Prize Pool
Non-cash Prize
Win4AISafety - Open Research Summer Challenge
Jul 6, 2026 - Aug 17, 2026
Prize Pool
Non-cash Prize
AQX Sports Analytics Data Bowl 2.0
Jun 30, 2026 - Jul 10, 2026
Prize Pool
$50