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 →HA
DEMOKHE
HacKSU
other
Prize PoolNon-cash Prize
Days Left1429 days
LocationOnline
Date RangeMar 24, 2026 - Mar 24, 2030
End DateMar 24, 2030
CI
Claude Hackathon at Imperial College London | Claude Builder Club @ Imperial
Claude Builder Club @ Imperial
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 23, 2026 - Mar 24, 2026
End DateMar 24, 2026
AT
AthenaHacks 2026
AthenaHacks
otherbeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 24, 2026 - Mar 29, 2026
End DateMar 29, 2026
AC
JagHacks 2026
ACM-TAMUSA
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 27, 2026 - Mar 28, 2026
End DateMar 28, 2026
UP
FemmeHacks 2026
University of Penn
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 27, 2026 - Mar 28, 2026
End DateMar 28, 2026
HA
Hackiethon 2026
HackMelbourne
othergamefiai agents
Prize Pool$700
Days LeftEnded
LocationOnline
Date RangeMar 27, 2026 - Mar 30, 2026
Submission DeadlineMar 30, 2026
PC
PiHacks Enhanced
PiHi CompSci
othergaming
Prize Pool$201
Days Left6 days
LocationOnline
Date RangeApr 1, 2026 - May 1, 2026
End DateMay 1, 2026
PC
PiHacks
PiHi CompSci
othergamefigaming
Prize Pool$199
Days Left6 days
LocationOnline
Date RangeApr 1, 2026 - May 1, 2026
End DateMay 1, 2026
OU
Grizzhacks 8
Oakland University
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 28, 2026 - Mar 29, 2026
End DateMar 29, 2026
AL
Quantum Ready College Projects -Winter2026
AI Launch Lab
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 26, 2026 - Mar 28, 2026
End DateMar 28, 2026
SC
SCESoc x Ciena Coding Competition
SCESoc
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 25, 2026 - Mar 26, 2026
End DateMar 26, 2026
CE
49er Foundry: 49-MINUTE PITCH COMPETITION- R1
cei
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 25, 2026 - Mar 26, 2026
End DateMar 26, 2026
SU
BLOCKCHAIN HACK KRAKOW
superteam
othersolanarust
Prize Pool$9.0K
Days LeftEnded
LocationOnline
Date RangeMar 28, 2026 - Mar 29, 2026
End DateMar 29, 2026
HA
SystemHacks
HackathonForAll
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 23, 2026 - Apr 25, 2026
End DateApr 25, 2026
MY
Smart Desktop Setup & AI Creation Challenge
MSA UW and Bothell Youth
other
Prize Pool$1.9K
Days Left11 days
LocationOnline
Date RangeMar 23, 2026 - May 6, 2026
End DateMay 6, 2026
BL
BlairHacks 8
BlairHacks
otheron-sitebeginner / first-time hackers
Prize PoolNon-cash Prize
Days Left30 days
LocationOnline
Date RangeMay 23, 2026 - May 25, 2026
End DateMay 25, 2026
RH
RaptorHacks
Raptor Hacks
otherhybrid
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 21, 2026 - Mar 22, 2026
Submission DeadlineMar 21, 2026
GH
Global Fusion hackathon
Global Fusion Hackathon
otherai agentswildcard / open innovation
Prize Pool$1.8K
Days LeftEnded
LocationOnline
Date RangeApr 1, 2026 - Apr 15, 2026
Submission DeadlineApr 15, 2026
DE
BeachHacks 9.0
Devpost
Prize Pool$600
Days LeftEnded
LocationOnline
Date RangeMar 21, 2026 - Mar 22, 2026
End DateMar 22, 2026
Synthesis
Synthesis
otherethereumai agents
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 8, 2026 - Mar 23, 2026
End DateMar 23, 2026