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 →Grizzhacks 8
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
Quantum Ready College Projects -Winter2026
Mar 26, 2026 - Mar 28, 2026
Prize Pool
Non-cash Prize
SCESoc x Ciena Coding Competition
Mar 25, 2026 - Mar 26, 2026
Prize Pool
Non-cash Prize
49er Foundry: 49-MINUTE PITCH COMPETITION- R1
Mar 25, 2026 - Mar 26, 2026
Prize Pool
Non-cash Prize
BLOCKCHAIN HACK KRAKOW
Mar 28, 2026 - Mar 29, 2026
Prize Pool
$9.0K
SystemHacks
Mar 23, 2026 - Apr 25, 2026
Prize Pool
Non-cash Prize
Smart Desktop Setup & AI Creation Challenge
Mar 23, 2026 - May 6, 2026
Prize Pool
$1.9K
BlairHacks 8
May 23, 2026 - May 25, 2026
Prize Pool
Non-cash Prize
RaptorHacks
Mar 21, 2026 - Mar 22, 2026
Prize Pool
Non-cash Prize
Global Fusion hackathon
Apr 1, 2026 - Apr 15, 2026
Prize Pool
$1.8K
BeachHacks 9.0
Mar 21, 2026 - Mar 22, 2026
Prize Pool
$600
Status: EndedSynthesis
Feb 8, 2026 - Mar 23, 2026
Prize Pool
Non-cash Prize
Global Public Health Hackathon 2026
Mar 27, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
Voice-Driven UxS
Mar 20, 2026 - Mar 21, 2026
Prize Pool
$20.0K
2026 WiCS Hackathon
Mar 21, 2026 - Mar 22, 2026
Prize Pool
Non-cash Prize
PharmaHacks 2026
Mar 21, 2026 - Mar 22, 2026
Prize Pool
$1.6K
LevelNext Hackathon
Mar 21, 2026 - Mar 25, 2026
Prize Pool
$3.5K
InfluenceHacks
Mar 21, 2026 - Apr 15, 2026
Prize Pool
Non-cash Prize
MSU Designathon 2026
Mar 21, 2026 - Mar 22, 2026
Prize Pool
Non-cash Prize
Pi Hacks 2026
Mar 21, 2026 - Mar 22, 2026
Prize Pool
$1.5K