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 →TE
Web of Innovation : AI Next Gen Hackathon 2026
Techverse
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 15, 2026 - Mar 19, 2026
End DateMar 19, 2026
AC
Campfire Biratnagar 2026: Nepal’s Biggest Game Jam
Arniko Hack Club
othergaming
Prize Pool₹200.0K
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 1, 2026
End DateMar 1, 2026
UH
WAV Hackathon
Urban League Young Professionals of HR
otherpublic goods & impact
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 27, 2026 - Mar 28, 2026
End DateMar 28, 2026
AC
AURELION
ACM-IEEE-KITS
other
Prize Pool₹60.0K
Days LeftEnded
LocationOnline
Date RangeFeb 27, 2026 - Feb 28, 2026
End DateFeb 28, 2026
FO
404 Mission Found
foundcode404
other
Prize Pool$625
Days LeftEnded
LocationOnline
Date RangeMar 15, 2026 - Mar 21, 2026
End DateMar 21, 2026
OC
Generative AI Hackathon
Open Community
other
Prize Pool$1.0K
Days LeftEnded
LocationOnline
Date RangeMar 20, 2026 - Mar 31, 2026
End DateMar 31, 2026
LO
LovHack x Medo
Lovhack
otherremoteai agents
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 2, 2026
End DateMar 2, 2026
HA
HackTCNJ 2026
HackTCNJ
otherbeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 1, 2026
End DateMar 1, 2026
ML
Build with Gemini – Zetech HackDay
MLH
otherai agentsbeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 27, 2026 - Feb 28, 2026
End DateFeb 28, 2026
GA
GatewayGS Hackathon
GatewayGS
otherai agentspublic goods & impact
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 15, 2026 - Apr 5, 2026
End DateApr 5, 2026
KU
Infinity Codewave
KUMSC
otherpublic goods & impactwildcard / open innovation
Prize Pool$890
Days LeftEnded
LocationOnline
Date RangeApr 24, 2026 - Apr 25, 2026
End DateApr 25, 2026
ME
MunichTech EXPO
MunichTecg EXPO
other
Prize PoolNon-cash Prize
Days Left143 days
LocationOnline
Date RangeSep 1, 2026 - Sep 20, 2026
End DateSep 20, 2026
GW
Google Build with AI Hackathon
Google Developer Group WashU
othergcpai agents
Prize Pool$10.0K
Days LeftEnded
LocationOnline
Date RangeApr 11, 2026 - Apr 12, 2026
End DateApr 12, 2026
ML
Hook 'Em Hacks
MLH
otherbeginner / first-time hackers
Prize Pool$1.5K
Days LeftEnded
LocationOnline
Date RangeApr 18, 2026 - Apr 19, 2026
End DateApr 19, 2026
CS
She ships - 8M hackathon
crafter station
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 6, 2026 - Mar 8, 2026
End DateMar 8, 2026
CA
Caltech Longevity Hackathon 2026
Caltech
otherai agents
Prize PoolNon-cash Prize
Days Left24 days
LocationOnline
Date RangeMay 22, 2026 - May 24, 2026
End DateMay 24, 2026
IA
IATA ONE Record Hackathon – hosted by Cathay Cargo & CHAMP Cargosystems
iata
otheron-sitesupply chain
Prize Pool$12.0K
Days LeftEnded
LocationOnline
Date RangeApr 24, 2026 - Apr 26, 2026
Submission DeadlineApr 26, 2026
M(
Maximally SaaS Sprint: Build in 7 Days
Maximally (https://maximally.in)
other
Prize Pool₹487.5K
Days LeftEnded
LocationOnline
Date RangeMar 31, 2026 - Apr 6, 2026
End DateApr 6, 2026
DE
DevonomicsV1
Devonomics
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 20, 2026 - Mar 27, 2026
End DateMar 27, 2026
GD
GenAI Dev Hackathon
GenAI Devs
other
Prize Pool$100
Days LeftEnded
LocationOnline
Date RangeFeb 24, 2026 - Mar 24, 2026
End DateMar 24, 2026