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 →MD
McGill AeroHacks
McGill Aerial Design
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 13, 2026 - Mar 15, 2026
End DateMar 15, 2026
EC
EcoHack
EcoHack
otherpublic goods & impactbeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 11, 2026 - Apr 23, 2026
End DateApr 23, 2026
HC
StarkHacks
Humanoid Robot Club
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 17, 2026 - Apr 19, 2026
End DateApr 19, 2026
CC
305 Hack Spr26 | SubmissionPortal | Register@305hackspring2026.vercel.app
CODE CRUNCH
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 20, 2026 - Mar 22, 2026
End DateMar 22, 2026
HA
Kent Hack Enough 2026
HacKSU
otherhybrid
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 28, 2026 - Mar 29, 2026
End DateMar 29, 2026
GS
The 2030 AI Challenge
Girls In Code SEA
otherai agentspublic goods & impact
Prize Pool$435
Days LeftEnded
LocationOnline
Date RangeMar 7, 2026 - Mar 28, 2026
Submission DeadlineMar 28, 2024
OR
Ordeflow 001
Orderflow
otherpython
Prize Pool$500
Days LeftEnded
LocationOnline
Date RangeMar 22, 2026 - Mar 24, 2026
Submission DeadlineMar 24, 2026
C(
ConHacks 2026
Conestoga Computing Society (CCS)
otherpythonon-site
Prize Pool$3.0K
Days LeftEnded
LocationOnline
Date RangeMar 27, 2026 - Mar 29, 2026
Submission DeadlineMar 29, 2026
FD
HackFW
Fort Worth DAO
other
Prize Pool$4.0K
Days Left2 days
LocationOnline
Date RangeApr 3, 2026 - May 2, 2026
End DateMay 2, 2026
SS
Stevens QuackHacks
Stevens Women in Computer Science
othergaming
Prize Pool$1.2K
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 1, 2026
End DateMar 1, 2026
UD
Raven Hacks VTL
Univa Dev
otherremotesocialfi
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 23, 2026
End DateMar 23, 2026
US
SASEHacks 2026
UF SASE
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 7, 2026 - Mar 8, 2026
Submission DeadlineMar 8, 2026
UW
RamadanHacks
University of Waterloo
otherremote
Prize Pool$1.0K
Days LeftEnded
LocationOnline
Date RangeMar 16, 2026 - Mar 22, 2026
Submission DeadlineMar 23, 2026
CC
HackFiesta Miami 2026 SubmissionPortal | Register@hackfiestamiami2026.vercel.app
CODE CRUNCNH
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 9, 2026 - Mar 17, 2026
End DateMar 17, 2026
BL
BuildAI 7
BuildAi Labs
otherremoteai agents
Prize Pool$22.5K
Days LeftEnded
LocationOnline
Date RangeMar 28, 2026 - Apr 4, 2026
End DateApr 4, 2026
UA
UWB Hacks: The Future!
UWB ACM
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 25, 2026 - Apr 26, 2026
End DateApr 26, 2026
DC
Durham College Hackathon 2026
Durham College
other
Prize Pool$875
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 15, 2026
Submission DeadlineMar 15, 2026
DE
DevNetwork [AI + ML] Hackathon 2026
Devpost
other
Prize PoolNon-cash Prize
Days Left28 days
LocationOnline
Date RangeMay 11, 2026 - May 28, 2026
End DateMay 28, 2026
GZ
GenAI Zürich Hackathon 2026
GenAI Zurich
otherremotehybrid
Prize Pool€10.9K
Days LeftEnded
LocationOnline
Date RangeMar 2, 2026 - Mar 18, 2026
Submission DeadlineApr 2, 2026
HA
HackAmerica
HackAmerica
otherremotebeginner / first-time hackers
Prize Pool$1.2K
Days LeftEnded
LocationOnline
Date RangeApr 11, 2026 - Apr 18, 2026
End DateApr 18, 2026