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 The City 2026
Sep 21, 2026 - Sep 25, 2026
Prize Pool
€6.0K
Nerdearla Vibeathon 2026
Sep 24, 2026 - Sep 25, 2026
Prize Pool
Non-cash Prize
WarriorHacks 2.0
Sep 28, 2026 - Oct 13, 2026
Prize Pool
$20.9K
Lake Oswego Hacks
Sep 26, 2026 - Sep 27, 2026
Prize Pool
$260
Banana Hacks
Oct 9, 2026 - Oct 12, 2026
Prize Pool
$500
LarpHacks
Oct 24, 2026 - Oct 25, 2026
Prize Pool
$21.4K
HackWashU Fall AI Build Challenge
Sep 25, 2026 - Sep 27, 2026
Prize Pool
Non-cash Prize
Zoftware Hireathon
Oct 2, 2026 - Oct 3, 2026
Prize Pool
$500
hackPHS 2026
Oct 10, 2026 - Oct 11, 2026
Prize Pool
$1.0K
EurekaDev 2026
Sep 27, 2026 - Oct 20, 2026
Prize Pool
$4.3K
United Hacks V8
Jan 8, 2027 - Jan 10, 2027
Prize Pool
$700
Hack Apertus
Oct 1, 2026 - Oct 16, 2026
Prize Pool
€8.0K
Arbiter Hacks V1
Oct 20, 2026 - Dec 21, 2026
Prize Pool
$3.8K
ForgeHacks Online 2026
Oct 3, 2026 - Oct 10, 2026
Prize Pool
$313.1K
IEEE ClimateChain Global Hackathon
Oct 5, 2026 - Oct 25, 2026
Prize Pool
$3.0K
Bharat Innovation Challenge 2.0
Sep 18, 2026 - Sep 22, 2026
Prize Pool
₹10.6K
HackIT 2026
Sep 14, 2026 - Oct 20, 2026
Prize Pool
Non-cash Prize
Hack Days Turbhe
Sep 20, 2026 - Sep 29, 2026
Prize Pool
Non-cash Prize
SVYCA Youth for Earth (Y4E) Hackathon
Sep 20, 2026 - Oct 18, 2026
Prize Pool
$2.7K
305 HackShells Edition September 2026
Sep 15, 2026 - Sep 30, 2026
Prize Pool
Non-cash Prize