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 →GEC CODERS' CLUB HACK DAY
Feb 27, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize
xStocks Hackathon EthCC: Market Open
Mar 31, 2026 - Apr 2, 2026
Prize Pool
$75.0K
HackTrent 2026
Nov 6, 2026 - Nov 8, 2026
Prize Pool
Non-cash Prize
ClarkHacks 2026
Apr 18, 2026 - Apr 19, 2026
Prize Pool
Non-cash Prize
GNEC Hackathon 2026 Spring - Compete For UN-Affiliated/NGO Internships & Prizes
Mar 12, 2026 - May 3, 2026
Prize Pool
$700
Hack Cupertino 2026
Apr 11, 2026 - Apr 12, 2026
Prize Pool
Non-cash Prize
Victor Hacks
Apr 11, 2026 - Apr 12, 2026
Prize Pool
$5.0K
INNOSpark Pitch Competition
Mar 1, 2026 - Apr 4, 2026
Prize Pool
$5.0K
PickHacks 2026
Feb 27, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
Geminathon
Mar 1, 2026 - Mar 3, 2026
Prize Pool
Non-cash Prize
HenHacks 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
Shower Hacks
Oct 3, 2026 - Oct 4, 2026
Prize Pool
Non-cash Prize
Lone Star Hackathon
Feb 27, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize
Code for Connection: Open Lines, Open Source
Mar 7, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize
The Midwest Blockathon
Mar 6, 2026 - Mar 8, 2026
Prize Pool
$1.5K
Campfire Arlington
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$400
WiCHacks '26
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$2.0K
hackMHS XI
May 29, 2026 - May 30, 2026
Prize Pool
Non-cash Prize
BearHacks 2026
Apr 24, 2026 - Apr 26, 2026
Prize Pool
Non-cash Prize
Missouri Startup Weekend
Apr 17, 2026 - Apr 19, 2026
Prize Pool
$110.0K