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 →FutureAI Global Hackathon 2026
May 29, 2026 - Jul 5, 2026
Prize Pool
Non-cash Prize
HACKFEST'26
Jun 7, 2026 - Jun 22, 2026
Prize Pool
Non-cash Prize
Built with Python Hackathon
Jun 6, 2026 - Jun 27, 2026
Prize Pool
Non-cash Prize
Brainwave 2026
Jun 12, 2026 - Aug 9, 2026
Prize Pool
$1.0K
Build with Gemini
Jun 9, 2026 - Jun 26, 2026
Prize Pool
Non-cash Prize
Kaya AI IIT India Hackathon 2026
Jun 10, 2026 - Jul 10, 2026
Prize Pool
₹350.0K
Agentic AI Build Week 2026
Jun 9, 2026 - Jul 11, 2026
Prize Pool
$1.0M
Africa Deep Tech Challenge 2026
Jun 17, 2026 - Aug 27, 2026
Prize Pool
$16.5K
Mind the Product presents World Product Day: Everyone Ships Now
May 20, 2026 - Jun 20, 2026
Prize Pool
$10.0K
Global AI Hackathon Series with Qwen Cloud
May 26, 2026 - Jul 9, 2026
Prize Pool
$45.0K
GitLab Transcend Hackathon
Jun 10, 2026 - Jun 24, 2026
Prize Pool
$20.0K
Reddit’s Games with a Hook Hackathon
Jun 17, 2026 - Jul 15, 2026
Prize Pool
$40.0K
Arm Create: AI Optimization Challenge
Jun 4, 2026 - Aug 14, 2026
Prize Pool
$8.0K
Build with Gemini XPRIZE
May 19, 2026 - Aug 17, 2026
Prize Pool
$2.0M
Slack Agent Builder Challenge
May 20, 2026 - Jul 13, 2026
Prize Pool
$42.0K
H0: Hack the Zero Stack with Vercel v0 and AWS Databases
May 27, 2026 - Jun 29, 2026
Prize Pool
$80.0K
UiPath AgentHack
May 15, 2026 - Jun 29, 2026
Prize Pool
$50.0K
TritonHacks 26
May 16, 2026 - May 17, 2026
Prize Pool
Non-cash Prize
Midnight Hackathon
May 15, 2026 - May 17, 2026
Prize Pool
Non-cash Prize
Kyxgo hack by Aditya Rai & Yash
May 15, 2026 - May 21, 2026
Prize Pool
Non-cash Prize