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 →Hack Kosice 2026
Apr 18, 2026 - Apr 19, 2026
Prize Pool
Non-cash Prize
hack.msa
Apr 18, 2026 - Apr 19, 2026
Prize Pool
$5.0K
HackKU26
Apr 18, 2026 - Apr 19, 2026
Prize Pool
$6.3K
UIUC Agentic AI x Build OpenClaw Workshop - Personal OpenClaw Submission
Apr 10, 2026 - Apr 14, 2026
Prize Pool
Non-cash Prize
WEHack 2026
Apr 11, 2026 - Apr 12, 2026
Prize Pool
Non-cash Prize
Berea College Hackathon
Apr 11, 2026 - Apr 12, 2026
Prize Pool
Non-cash Prize
MorganHacks 2026
Apr 11, 2026 - Apr 12, 2026
Prize Pool
$16.0K
JACHacks 2026
Apr 11, 2026 - Apr 12, 2026
Prize Pool
Non-cash Prize
Anthropic Hackathon @ IIT Delhi
Apr 11, 2026 - Apr 12, 2026
Prize Pool
₹20.0K
Be Hackathon
Apr 11, 2026 - Apr 12, 2026
Prize Pool
Non-cash Prize
Global Neurohack
Apr 11, 2026 - Apr 12, 2026
Prize Pool
$3.6K
MIT Bitcoin Hackathon: Freedom for All
Apr 11, 2026 - Apr 12, 2026
Prize Pool
$20.0K
Global Fusion hackathon
Apr 11, 2026 - Apr 15, 2026
Prize Pool
$1.8K
AI Agentic Hackathon Powered by Microsoft
Apr 11, 2026 - Apr 20, 2026
Prize Pool
₹50.0K
CreateSC 2026
Apr 11, 2026 - Apr 12, 2026
Prize Pool
$1.4K
NeuroLogic '26: Global NLP Datathon
Apr 24, 2026 - Apr 25, 2026
Prize Pool
Non-cash Prize
Bot To Agent by MLH Hack Days
Apr 26, 2026 - Apr 27, 2026
Prize Pool
Non-cash Prize
Claude x Hoagie Vibe-a-thon
Apr 10, 2026 - Apr 11, 2026
Prize Pool
Non-cash Prize
Hack the Bay Launch 2026
Apr 10, 2026 - Apr 11, 2026
Prize Pool
Non-cash Prize
Aikshetra Tech - Hackathon
Apr 10, 2026 - Apr 11, 2026
Prize Pool
Non-cash Prize