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 →CH
Quest Hackathon
CS Hacks
otherai agents
Prize Pool$5.5K
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 31, 2026
End DateMar 31, 2026
SH
World Model Hackathon
SensAI Hack
otherai agentsgaming
Prize Pool$8.0K
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 15, 2026
End DateMar 15, 2026
AL
ThunderHacks
ALCOMS
otheron-sitebeginner / first-time hackers
Prize Pool$1.5K
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 15, 2026
End DateMar 15, 2026
BL
B@BHacks 2026
Blockchain@Berkeley
othersolanasui
Prize Pool$20.0K
Days LeftEnded
LocationOnline
Date RangeMar 13, 2026 - Mar 14, 2026
End DateMar 14, 2026
ES
SotonHack
Electronics and Computer Science Society
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 15, 2026
End DateMar 15, 2026
AN
HackHealth 2026
ACM at Northeastern
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 15, 2026
End DateMar 15, 2026
Aleph Hackathon | March '26
Aleph Hackathon
otherethereumavalanche
Prize Pool$10.0K
Days LeftEnded
LocationOnline
Date RangeMar 20, 2026 - Mar 22, 2026
End DateMar 22, 2026
TC
TUJ Spring 2026 UI/UX Hackathon
Temple University Japan Campus
otherbeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 13, 2026 - Mar 14, 2026
End DateMar 14, 2026
IE
Develop the Next Hackathon
Institution of Engineers
other
Prize Pool$3.9K
Days LeftEnded
LocationOnline
Date RangeMar 13, 2026 - Mar 25, 2026
End DateMar 25, 2026
AN
Claude Hackathon x UVicHacks
Anthropic
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 20, 2026 - Mar 21, 2026
Submission DeadlineMar 22, 2026
IE
NextDev Hackathon
iei
other
Prize Pool$3.9K
Days LeftEnded
LocationOnline
Date RangeMar 13, 2026 - Mar 24, 2026
End DateMar 24, 2026
JU
Chakravyuh - The Escape Protocol
Jain University
othersecurity & audit
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 13, 2026 - Mar 25, 2026
End DateMar 25, 2026
KT
Katz School CS & A.I Club Ideathon
Katz School of Science and Technology
otherai agents
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 23, 2026 - Apr 12, 2026
End DateApr 12, 2026
DE
test4
Devpost
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 12, 2026 - Mar 13, 2026
End DateMar 13, 2026
US
ClubHacks
UWindsor Computer Science Society
other
Prize Pool$500
Days LeftEnded
LocationOnline
Date RangeApr 3, 2026 - Apr 4, 2026
End DateApr 4, 2026
ML
Hackalot HMA – Clash of Code
MLH
otherai agentsai and blockchain
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 12, 2026 - Mar 13, 2026
End DateMar 13, 2026
GG
GenAI Genesis 2026
GenAI Genesis
otherhybrid
Prize Pool$20.0K
Days LeftEnded
LocationOnline
Date RangeMar 13, 2026 - Mar 15, 2026
End DateMar 15, 2026
AI
doable with lovable
AISoc
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 23, 2026 - Mar 24, 2026
End DateMar 24, 2026
HM
Brewing Codes 4.0
HARD MODE
other
Prize Pool$160.0K
Days Left701 days
LocationOnline
Date RangeMar 12, 2028 - Mar 27, 2028
End DateMar 27, 2028
CJ
Code as a Canvas
cherielle x byte journal
otherbeginner / first-time hackers
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 14, 2026 - Mar 21, 2026
End DateMar 21, 2026