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 →STEMEd AI Hackathon
Mar 1, 2026 - May 2, 2026
Prize Pool
$100
BigRedHacks
Mar 6, 2026 - Mar 13, 2026
Prize Pool
Non-cash Prize
PIXEL.GEMINI
Feb 28, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
2026 UF Design-a-thon by GUD
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$700
HackVision
Apr 4, 2026 - Apr 5, 2026
Prize Pool
₹100.0K
The Cambridge Game Jam 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
£1.5K
Hack Canada 2026
Mar 6, 2026 - Mar 8, 2026
Prize Pool
$1.0K
BUCS Hackathon 2026
Mar 6, 2026 - Mar 7, 2026
Prize Pool
$300
Hack the Case
Mar 7, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize
HackMerced XI
Mar 6, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize
IEEE Quarterly Projects Winter 2026
Mar 1, 2026 - Mar 12, 2026
Prize Pool
Non-cash Prize
The FinTech Hackathon
Feb 28, 2026 - Mar 1, 2026
Prize Pool
£3.0K
Stevens QuackHacks 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
Cheesehacks
Feb 28, 2026 - Mar 1, 2026
Prize Pool
$1.5K
Byte. Hack Days
Feb 27, 2026 - Feb 28, 2026
Prize Pool
Non-cash Prize
DemonHacks
Feb 28, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
btc/acc
Feb 6, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize
Hack'Her'Thon'26
Mar 12, 2026 - Mar 13, 2026
Prize Pool
₹50.0K
Code Quest
Feb 27, 2026 - Feb 28, 2026
Prize Pool
$450
Mountain Madness 2026
Feb 28, 2026 - Mar 1, 2026
Prize Pool
Non-cash Prize