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 →SNS Bold.ai
Jun 1, 2026 - Jun 30, 2026
Prize Pool
₹1.0M
Next Byte Hacks V3
Jun 15, 2026 - Jul 15, 2026
Prize Pool
$100
Hack Days Unnao
May 25, 2026 - Jun 20, 2026
Prize Pool
Non-cash Prize
VoltHacks
May 22, 2026 - Sep 5, 2026
Prize Pool
$2.9K
InnovatorsX: Startup Sprint
Jun 5, 2026 - Jun 29, 2026
Prize Pool
Non-cash Prize
Moonshot Hackathon
Jun 3, 2026 - Jun 30, 2026
Prize Pool
$33.5K
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