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 →BI
AI4PURPOSE-PALESTINE
Birzeit
otherai agentspublic goods & impact
Prize Pool$1.0K
Days LeftEnded
LocationOnline
Date RangeFeb 14, 2026 - Feb 24, 2026
End DateFeb 24, 2026
FD
Prompt-a-Thon
Fetch.ai Developers:Meerut
otherremoteai agents
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 13, 2026 - Feb 25, 2026
End DateFeb 25, 2026
CF
#75HER Challenge Hackathon 2026
CreateHER Fest
otherai agents
Prize Pool$1.5K
Days LeftEnded
LocationOnline
Date RangeFeb 16, 2026 - Mar 8, 2026
Submission DeadlineMar 7, 2026
SU
SunnyHacks Feb 2026
SunnyHacks
otherai and blockchain
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 1, 2026 - Mar 1, 2026
End DateMar 1, 2026
SO
Everything But the Byte
Silicon Valley Youth Robotics Org.
other
Prize Pool$50
Days LeftEnded
LocationOnline
Date RangeJan 14, 2026 - Feb 25, 2026
End DateFeb 25, 2026
A2
API Innovate 2026
AI FOR BHARAT 2026
other
Prize Pool₹9.0K
Days LeftEnded
LocationOnline
Date RangeFeb 14, 2026 - Mar 15, 2026
Submission DeadlineMar 15, 2026
GA
ORIGIN Hackathon
Galene
otherpublic goods & impact
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 4, 2026 - Feb 24, 2026
End DateFeb 24, 2026
DE
Learn It Global Hackathon V2
Devpost
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 14, 2026 - Feb 28, 2026
End DateFeb 28, 2026
CH
CodeSprout Beginner’s Hackathon 2026
CodeSprout Hack
otherbeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 14, 2026 - Feb 28, 2026
End DateFeb 28, 2026
ML
Martingale Hacks
Martingale League
otherhigh frequency tradingprediction market
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeDec 9, 2025 - Feb 28, 2026
End DateFeb 28, 2026
ML
Strathspace Hack Day
MLH
otherai agents
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeOct 27, 2025 - Feb 26, 2026
End DateFeb 26, 2026
RC
Apertre 3.0
Resourcio Community
other
Prize Pool₹50.0K
Days LeftEnded
LocationOnline
Date RangeJan 31, 2026 - Mar 1, 2026
End DateMar 1, 2026
CC
Creator Colosseum Startup Competition: Student Founders. Real Startups.
Creator Colosseum
other
Prize Pool$575
Days LeftEnded
LocationOnline
Date RangeJan 6, 2026 - Mar 26, 2026
End DateMar 26, 2026
BI
Automation Innovation Hackathon 2026
Borealius Cloud Solutions inc
other
Prize Pool$24.0K
Days LeftEnded
LocationOnline
Date RangeFeb 14, 2026 - Mar 10, 2026
End DateMar 10, 2026
GC
CircuitBreak 2025
GEAR Club
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeJan 1, 2026 - Mar 31, 2026
End DateMar 31, 2026
CF
AI For Good
connecting-dreams foundation
otherai agentspublic goods & impact
Prize Pool₹60.0K
Days LeftEnded
LocationOnline
Date RangeJan 31, 2026 - Feb 28, 2026
End DateFeb 28, 2026
KS
Global Innovation Build Challenge V1
Kang Chiao International School Student
otherremotebeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeDec 13, 2025 - Feb 28, 2026
Submission DeadlineFeb 28, 2026
KA
Hack for Humanity | 2026 (participation prizes!)
Kuba Apps
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeFeb 1, 2026 - Feb 28, 2026
End DateFeb 28, 2026
DO
Dev Season of Code
DSOC Official
otherai agents
Prize Pool$4.0K
Days LeftEnded
LocationOnline
Date RangeJan 26, 2026 - Feb 28, 2026
End DateFeb 28, 2026
NB
Next Byte Hacks: January 2026
Next Bytes
otherbeginner / first-time hackers
Prize Pool$100
Days LeftEnded
LocationOnline
Date RangeJan 15, 2026 - Feb 23, 2026
End DateFeb 23, 2026