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 →InterWell Hack2.0
Oct 3, 2026 - Oct 31, 2026
Prize Pool
₹1.0K
HEALTHHACK 48
Oct 17, 2026 - Oct 19, 2026
Prize Pool
Non-cash Prize
WolfHacks 2026 by ACM NCSU
Oct 3, 2026 - Oct 4, 2026
Prize Pool
Non-cash Prize
MHacks 2026
Oct 3, 2026 - Oct 4, 2026
Prize Pool
$20.3K
MATLAB in Space
Oct 2, 2026 - Oct 3, 2026
Prize Pool
Non-cash Prize
GirlHacks 2026
Oct 3, 2026 - Oct 4, 2026
Prize Pool
Non-cash Prize
Dream Team Engineering Designathon 2026
Oct 3, 2026 - Oct 4, 2026
Prize Pool
$700
Shiva Tech -Prompt Wars
Oct 8, 2026 - Oct 9, 2026
Prize Pool
Non-cash Prize
Hack Knight Fall 2026
Oct 9, 2026 - Oct 11, 2026
Prize Pool
Non-cash Prize
Cornell Six Sigma Hackathon
Oct 16, 2026 - Oct 17, 2026
Prize Pool
Non-cash Prize
CodeML
Oct 2, 2026 - Oct 4, 2026
Prize Pool
$8.0K
AdaHack 2026
Oct 2, 2026 - Oct 3, 2026
Prize Pool
Non-cash Prize
HACK PRADESH – RVIT Hackathon
Oct 6, 2026 - Oct 8, 2026
Prize Pool
₹50.0K
Women's Hack Night
Oct 1, 2026 - Oct 2, 2026
Prize Pool
Non-cash Prize
QMUL AI Hackathon
Oct 9, 2026 - Oct 10, 2026
Prize Pool
Non-cash Prize
PayPal AI Hackathon
Oct 1, 2026 - Nov 12, 2026
Prize Pool
$67.5K
Learn to Hack: MATLAB Edition 2026
Oct 29, 2026 - Oct 30, 2026
Prize Pool
Non-cash Prize
2026 International CodeTheCure Hackathon
Oct 10, 2026 - Oct 30, 2026
Prize Pool
$500
AIC Internal Competition -2026 (Agentic AI)
Sep 30, 2026 - Oct 12, 2026
Prize Pool
Non-cash Prize
Rowdy Hacks XII
Oct 3, 2026 - Oct 4, 2026
Prize Pool
Non-cash Prize