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 →hackUMBC Mini Hackathon
Apr 17, 2026 - Apr 18, 2026
Prize Pool
Non-cash Prize
DUWiT Hacks 2026
Mar 7, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize
Hack Brooklyn
Apr 17, 2026 - Apr 19, 2026
Prize Pool
Non-cash Prize
ImpactHacks by Hackathon for All
Apr 5, 2026 - Apr 6, 2026
Prize Pool
$1.0K
AdaHacks 2026
Mar 6, 2026 - Mar 8, 2026
Prize Pool
$1.2K
UW Tech Exploration Lab Digital Health Challenge
Mar 20, 2026 - Apr 6, 2026
Prize Pool
$1.8K
Hack Days in the 6ix
Mar 6, 2026 - Mar 7, 2026
Prize Pool
Non-cash Prize
BAM Hacks
Mar 28, 2026 - Mar 29, 2026
Prize Pool
Non-cash Prize
Campfire Sonipat
Mar 2, 2026 - Mar 3, 2026
Prize Pool
Non-cash Prize
EcoHacks
Mar 6, 2026 - Apr 12, 2026
Prize Pool
$175
GDG Winter 2026 Hackathon
Mar 2, 2026 - Mar 9, 2026
Prize Pool
$175
2026 CodeXtreme Ingenious Hackathon Season 1
Mar 4, 2026 - Mar 7, 2026
Prize Pool
$5.0K
CYHacks '26
Apr 24, 2026 - Apr 25, 2026
Prize Pool
$500
cmd-f 2026
Mar 7, 2026 - Mar 8, 2026
Prize Pool
Non-cash Prize
AgentathonX 2026 – India’s First Online Agentathon
Feb 21, 2026 - Mar 13, 2026
Prize Pool
₹10.0K
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