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 →Cursor Hackathon Toronto Tech Week
May 26, 2026 - May 27, 2026
Prize Pool
Non-cash Prize
Clash of Prompts: Worlds 1st Real-Time Prompt Battle Royale
May 6, 2026 - May 7, 2026
Prize Pool
Non-cash Prize
Trend Hacker
May 1, 2026 - May 3, 2026
Prize Pool
$300
SunnyHacks June 2026
Jun 1, 2026 - Jul 1, 2026
Prize Pool
Non-cash Prize
AI Autonomous Smart City Hackathon 2026
Apr 30, 2026 - May 4, 2026
Prize Pool
Non-cash Prize
Reddit Mod Tools and Migrated Apps Hackathon
Apr 29, 2026 - May 27, 2026
Prize Pool
$45.0K
Singapore StupidHacks
May 1, 2026 - May 2, 2026
Prize Pool
Non-cash Prize
Synthesis Hacks
May 22, 2026 - May 23, 2026
Prize Pool
Non-cash Prize
CED Hacks
Apr 29, 2026 - May 1, 2026
Prize Pool
$100
For Those Who Come After
Apr 28, 2026 - Apr 30, 2026
Prize Pool
Non-cash Prize
AI Game Week
May 3, 2026 - May 10, 2026
Prize Pool
Non-cash Prize
Pixel Forge Jam #2
Jun 27, 2026 - Jul 4, 2026
Prize Pool
Non-cash Prize
GDG Hacks 3
May 9, 2026 - May 10, 2026
Prize Pool
Non-cash Prize
Robolytics Speed Cad III
May 1, 2026 - May 2, 2026
Prize Pool
Non-cash Prize
DevSoc Starlight 2026
Apr 28, 2026 - Jul 10, 2026
Prize Pool
$1.1K
Swan Hacks Spring 2026
May 2, 2026 - May 3, 2026
Prize Pool
$8.0K
SproutSC x Akash Buildfest
Apr 28, 2026 - Apr 30, 2026
Prize Pool
$150
Nexforge
Apr 27, 2026 - May 3, 2026
Prize Pool
$4.5K
Google & GitCloud AI Mini-Hackathon
Apr 27, 2026 - Apr 30, 2026
Prize Pool
Non-cash Prize
HackDays Delhi
Jun 29, 2026 - Jun 30, 2026
Prize Pool
Non-cash Prize