Online Web3 Hackathons
Participate from anywhere in the world. Browse online Web3 and blockchain hackathons, compete for prizes, and build innovative projects.
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Build With Gemini
SustainChain Club
otherai agentswildcard / open innovation
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 10, 2026 - Mar 11, 2026
End DateMar 11, 2026
RO
HackGreenwich
RoleColorFinder
otherhybridbeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 1, 2026
End DateMar 1, 2026
CY
Robotic Agents Hackathon
cyberwave
otherremoteai agents
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 12, 2026 - Mar 13, 2026
End DateMar 13, 2026
ML
ListenHacks
MLH
otheron-site
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 27, 2026 - Feb 28, 2026
End DateFeb 28, 2026
DC
Philly Codefest High School Edition 2026
Drexel University CCI
otheron-sitebeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 27, 2026 - Feb 28, 2026
End DateFeb 28, 2026
SC
SVC Hackathon: Environmental Conservation
Skagit Valley College
otherpublic goods & impact
Prize PoolNon-cash Prize
Days Left6 days
LocationOnline
Date RangeMay 1, 2026 - May 2, 2026
End DateMay 2, 2026
HO
evensonarisnord
HoustonHacks2026
other
Prize Pool$150
Days Left249 days
LocationOnline
Date RangeDec 30, 2026 - Dec 31, 2026
End DateDec 31, 2026
BV
BISV Hacks 2026
BASIS Independent Silicon Valley
other
Prize Pool$490
Days LeftEnded
LocationOnline
Date RangeMar 7, 2026 - Mar 8, 2026
End DateMar 8, 2026
VI
ViTAL Hacks 2026
ViTAL
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 20, 2026 - Mar 21, 2026
End DateMar 21, 2026
NS
HackNova 3.0
NSCC SRM
otherai agentswildcard / open innovation
Prize Pool₹32.0K
Days LeftEnded
LocationOnline
Date RangeMar 19, 2026 - Mar 20, 2026
End DateMar 20, 2026
CC
The Galactic Archives
Computer Science Club
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 26, 2026 - Feb 27, 2026
End DateFeb 27, 2026
AN
Open Agents Hackathon
Akash Network
otherai agentsinfrastructure & developer tooling
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 24, 2026 - Feb 25, 2026
End DateFeb 25, 2026
TC
Big Red Hacks 2026
The Lawrenceville School AI Council
otherai agentspublic goods & impact
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 10, 2026 - Apr 11, 2026
End DateApr 11, 2026
SD
SDSS Datathon 2026
SDSS
otherpythonsql
Prize Pool$1.4K
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 1, 2026
End DateMar 1, 2026
QC
HackHer 2026
Queen's Women in Computing
other
Prize Pool$750
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 1, 2026
End DateMar 1, 2026
HD
HackRare 2026
Harvard Undergraduate Rare Diseases
otheron-sitepublic goods & impact
Prize Pool$6.0K
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 1, 2026
End DateMar 1, 2026
HU
IrvineHacks 2026
Hack at UCI
otheron-site
Prize Pool$1.6K
Days LeftEnded
LocationOnline
Date RangeFeb 28, 2026 - Mar 1, 2026
End DateMar 1, 2026
UF
GRiP Designathon Spring 2026
University of Florida
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 15, 2026 - Feb 28, 2026
Submission DeadlineFeb 15, 2026
CC
Hack the Planet 2026
cccoe
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 21, 2026 - Feb 26, 2026
End DateFeb 26, 2026
HA
Builders Day by HackUnion
HackUnion
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 3, 2026 - Apr 4, 2026
End DateApr 4, 2026