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 For The World 2026
Feb 27, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize
UVMHacks
Feb 27, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize
Build With Gemini
Mar 10, 2026 - Mar 11, 2026
Prize Pool
Non-cash Prize
HackGreenwich
Feb 28, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
Robotic Agents Hackathon
Mar 12, 2026 - Mar 13, 2026
Prize Pool
Non-cash Prize
ListenHacks
Feb 27, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize
Philly Codefest High School Edition 2026
Feb 27, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize
SVC Hackathon: Environmental Conservation
May 1, 2026 - May 2, 2026
Prize Pool
Non-cash Prize
evensonarisnord
Dec 30, 2026 - Dec 31, 2026
Prize Pool
$150
BISV Hacks 2026
Mar 7, 2026 - Mar 8, 2026
Prize Pool
$490
ViTAL Hacks 2026
Mar 20, 2026 - Mar 21, 2026
Prize Pool
Non-cash Prize
HackNova 3.0
Mar 19, 2026 - Mar 20, 2026
Prize Pool
₹32.0K
The Galactic Archives
Feb 26, 2026 - Feb 27, 2026
Prize Pool
Non-cash Prize
Open Agents Hackathon
Feb 24, 2026 - Feb 25, 2026
Prize Pool
Non-cash Prize
Big Red Hacks 2026
Apr 10, 2026 - Apr 11, 2026
Prize Pool
Non-cash Prize
SDSS Datathon 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$1.4K
HackHer 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$750
HackRare 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$6.0K
IrvineHacks 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$1.6K
GRiP Designathon Spring 2026
Feb 15, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize