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 →Ideathon 2026
Mar 10, 2026 - Apr 25, 2026
Prize Pool
₹45.0K
Design for Everyone by The Merge
Mar 10, 2026 - Mar 11, 2026
Prize Pool
Non-cash Prize
ZOOTech - Cursor Hackathon
Mar 14, 2026 - Mar 15, 2026
Prize Pool
$700
Durham HackDay
Mar 16, 2026 - Mar 17, 2026
Prize Pool
£350
CampusAI x MDC AI & Data Hackathon
Mar 13, 2026 - Mar 15, 2026
Prize Pool
$2.5K
Ingenia - Semana de Ingeniería
Mar 8, 2026 - Mar 20, 2026
Prize Pool
Non-cash Prize
Sac City Arduino Day Challenge
Mar 26, 2026 - Mar 27, 2026
Prize Pool
Non-cash Prize
Richmond Civic Hackathon
Mar 27, 2026 - Mar 28, 2026
Prize Pool
$14.0K
Ignisia | National Level AI Hackathon
Mar 8, 2026 - Mar 17, 2026
Prize Pool
₹100.0K
Galuxium Nexus V2
Jun 1, 2026 - Jul 1, 2026
Prize Pool
₹1.0M
sporty games
Mar 13, 2026 - Mar 16, 2026
Prize Pool
Non-cash Prize
Build with AI: Gemini Hackathon with Google DeepMind
Mar 7, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize
BACSA Hacks
Mar 7, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize
EngHacks
Mar 6, 2026 - Mar 7, 2026
Prize Pool
$300
Global Cultures Hackathon 2026
Mar 7, 2026 - Apr 4, 2026
Prize Pool
$744
BuildX Nagpur
Mar 7, 2026 - Mar 23, 2026
Prize Pool
Non-cash Prize
Find My Force - RedTeam Hackathon Series
Mar 6, 2026 - Mar 7, 2026
Prize Pool
$20.0K
BattleSnake 2026
Mar 7, 2026 - Mar 8, 2026
Prize Pool
$2.0K
Red Alert | Cybersecurity Hackathon 2026
Mar 7, 2026 - Mar 14, 2026
Prize Pool
Non-cash Prize
Hack AI 2026
Mar 7, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize