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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cybersage
MLH
otherai agentssecurity & audit
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 17, 2026 - Mar 26, 2026
End DateMar 26, 2026
IO
Jechacks
Independent Student Organizer
other
Prize Pool$2.2K
Days Left77 days
LocationOnline
Date RangeJul 10, 2026 - Jul 11, 2026
End DateJul 11, 2026
IS
IBM x UNSA Hackathon
IBM Z Sheridan x UNSA Sheridan
other
Prize PoolNon-cash Prize
Days Left15 days
LocationOnline
Date RangeMay 8, 2026 - May 10, 2026
End DateMay 10, 2026
WA
WiCS x Opportunity Hack: Spring 2026 Hackathon
Women in Computer Science @ ASU
other
Prize Pool$1.0K
Days LeftEnded
LocationOnline
Date RangeMar 28, 2026 - Mar 29, 2026
End DateMar 29, 2026
CU
Cursor Freeform
Cursor
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 15, 2026 - Mar 16, 2026
End DateMar 16, 2026
PG
Aurora Global Hackathon
Project GRID
otherremotehybrid
Prize Pool$3.0K
Days LeftEnded
LocationOnline
Date RangeMar 31, 2026 - Apr 1, 2026
End DateApr 1, 2026
CA
Abstraction Hackathon 2026
Calvin Abstraction
other
Prize Pool$2.0K
Days LeftEnded
LocationOnline
Date RangeMar 20, 2026 - Mar 21, 2026
End DateMar 21, 2026
BS
Blu's Hacks 2026
Branham High School
otheron-sitebeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 28, 2026 - Mar 29, 2026
End DateMar 29, 2026
NA
HACKHAZARDS '26
namespace
otherremoteai agents
Prize Pool$5.0K
Days LeftEnded
LocationOnline
Date RangeMar 16, 2026 - Apr 4, 2026
End DateApr 4, 2026
MH
Code Gemini
Major League Hacking
othergaming
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 16, 2026 - Mar 18, 2026
End DateMar 18, 2026
SC
Rebuilding the OS: Core System Utilities Hackathon
Saket Creations
other
Prize PoolNon-cash Prize
Days Left5 days
LocationOnline
Date RangeApr 17, 2026 - Apr 30, 2026
End DateApr 30, 2026
DE
Hack o Phobia 2026
Devpost
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 16, 2026 - Mar 18, 2026
End DateMar 18, 2026
MI
Seattle Divergent Hackathon
Microsoft
otherbeginner / first-time hackers
Prize Pool$600
Days LeftEnded
LocationOnline
Date RangeMar 20, 2026 - Mar 21, 2026
End DateMar 21, 2026
KI
Genovate Hack Days
KIIT
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 16, 2026 - Mar 17, 2026
End DateMar 17, 2026
SH
CBHS 2026 Hackathon
SHPE Cypress Bay High
other
Prize Pool$150
Days LeftEnded
LocationOnline
Date RangeApr 6, 2026 - Apr 13, 2026
End DateApr 13, 2026
HH
Hack for Humanity | Summer 2026
Hack for Humanity
other
Prize PoolNon-cash Prize
Days Left99 days
LocationOnline
Date RangeJul 3, 2026 - Aug 2, 2026
End DateAug 2, 2026
HO
HooHacks 2026
HooHacks
other
Prize Pool$13.2K
Days LeftEnded
LocationOnline
Date RangeMar 21, 2026 - Mar 22, 2026
End DateMar 22, 2026
AU
AEE Energy Hackathon
Arizona State University
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 18, 2026 - Apr 19, 2026
End DateApr 19, 2026
HH
Hyperbloom V2
hyperbloom hacks
otherbeginner / first-time hackers
Prize Pool₹7.0K
Days LeftEnded
LocationOnline
Date RangeMar 16, 2026 - Apr 15, 2026
End DateApr 15, 2026
CU
birmingHack 2.0
Computer Science Society (CSS) @ UoB
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 15, 2026
End DateMar 15, 2026