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 →HealthLink Life Sciences Hackathon 2026
Oct 2, 2026 - Oct 4, 2026
Prize Pool
Non-cash Prize
KUK VIRTUAL HACKATHON
Nov 15, 2026 - Nov 22, 2026
Prize Pool
$800
Qloo Agent Hackathon
Sep 30, 2026 - Oct 30, 2026
Prize Pool
$25.0K
Hacktoberfest Hack Day Dinajpur
Oct 2, 2026 - Oct 3, 2026
Prize Pool
Non-cash Prize
Open Source Impact
Sep 30, 2026 - Oct 31, 2026
Prize Pool
Non-cash Prize
SDC Hackathon 2026
Oct 19, 2026 - Oct 24, 2026
Prize Pool
$5.5K
BigRed//Hacks 2026
Oct 2, 2026 - Oct 4, 2026
Prize Pool
Non-cash Prize
HackOHI/O 2026
Oct 24, 2026 - Oct 25, 2026
Prize Pool
Non-cash Prize
RESPIRA HACKATHON
Oct 1, 2026 - Oct 3, 2026
Prize Pool
Non-cash Prize
TEST ROWDYHACKS
Sep 27, 2026 - Sep 28, 2026
Prize Pool
$1
Build for Canada: An AI Hackathon for Economic Resilience
Oct 2, 2026 - Oct 3, 2026
Prize Pool
Non-cash Prize
Hack Western 13
Nov 20, 2026 - Nov 22, 2026
Prize Pool
Non-cash Prize
UIUC Product Hackathon - Hack to the Future
Oct 2, 2026 - Oct 3, 2026
Prize Pool
Non-cash Prize
SUSTAIN-A-THON 2.0
Oct 27, 2026 - Oct 28, 2026
Prize Pool
$150.0K
EvoHacks2026
Oct 10, 2026 - Oct 11, 2026
Prize Pool
Non-cash Prize
Hack Dearborn: Conjure Reality
Oct 3, 2026 - Oct 4, 2026
Prize Pool
Non-cash Prize
FIK FAIR 2026
Sep 29, 2026 - Oct 4, 2026
Prize Pool
$360
Haven Asbury Park Game Jam - High School
Nov 14, 2026 - Nov 15, 2026
Prize Pool
Non-cash Prize
Hack Atlantic
Sep 26, 2026 - Sep 27, 2026
Prize Pool
Non-cash Prize
CSIT RE:Uni Hackathon 2026
Oct 2, 2026 - Oct 3, 2026
Prize Pool
$1.0K