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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Tyee Hackathon 2026
Tyee Middle School Programming Club
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 23, 2026 - Apr 27, 2026
End DateApr 27, 2026
DE
KeanUHackThis 2026
Devpost
Prize Pool$3.0K
Days LeftEnded
LocationOnline
Date RangeApr 25, 2026 - Apr 26, 2026
End DateApr 26, 2026
DE
HuskyHack 2026
Devpost
Prize Pool$900
Days Left2 days
LocationOnline
Date RangeMay 1, 2026 - May 2, 2026
End DateMay 2, 2026
GS
LionHacks
GDG Southeastern
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 22, 2026 - Apr 25, 2026
End DateApr 25, 2026
GF
DevFest + AI Hackathon Spring 2026 — Build with AI
GOOGLE DEVELOPER GROUP AT FIU
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 23, 2026 - Apr 24, 2026
End DateApr 24, 2026
GO
Google Cloud Rapid Agent Hackathon
other
Prize Pool$50.0K
Days Left42 days
LocationOnline
Date RangeMay 1, 2026 - Jun 11, 2026
End DateJun 11, 2026
NH
Test Hackathon
no host
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 21, 2026 - Apr 22, 2026
End DateApr 22, 2026
ET
Algiers'UP 4
ETIC
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 22, 2026 - Apr 25, 2026
End DateApr 25, 2026
The Turing Test Hackathon 2026
Mantle Network
othernansen
Prize Pool$100.0K
Days Left46 days
LocationOnline
Date RangeMay 1, 2026 - Jun 15, 2026
End DateJun 15, 2026
PR
Github readme generation
presentme
other
Prize PoolNon-cash Prize
Days Left33 days
LocationOnline
Date RangeApr 22, 2026 - Jun 2, 2026
End DateJun 2, 2026
MP
Project Stellar
Moscrop Computers and Programming
other
Prize Pool$100
Days Left38 days
LocationOnline
Date RangeJun 6, 2026 - Jun 7, 2026
End DateJun 7, 2026
CC
Ship to Prod - Agentic Engineering Hackathon
Creators Corner
other
Prize Pool$23.7K
Days LeftEnded
LocationOnline
Date RangeApr 23, 2026 - Apr 24, 2026
End DateApr 24, 2026
AL
AcademiesHacks 2026
Academies of Loudoun
other
Prize Pool$2.8K
Days LeftEnded
LocationOnline
Date RangeApr 25, 2026 - Apr 26, 2026
End DateApr 26, 2026
LH
lahacks-testing
LA Hacks
other
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 22, 2026 - Apr 30, 2026
End DateApr 30, 2026
Portaldot Online Mini Hackathon S1
Portaldot
otherrustsubstrate
Prize Pool$3.5K
Days Left31 days
LocationOnline
Date RangeApr 20, 2026 - May 31, 2026
End DateMay 31, 2026
CA
Hacktech by Caltech 2026
Caltech
other
Prize Pool$66.4K
Days LeftEnded
LocationOnline
Date RangeApr 25, 2026 - Apr 26, 2026
End DateApr 26, 2026
PR
Product@TAMU Projects Spring 2026 Demo Day
PRODUCT@TAMU
other
Prize Pool$250
Days LeftEnded
LocationOnline
Date RangeApr 21, 2026 - Apr 22, 2026
End DateApr 22, 2026
AU
Hack2Impact 2026
ACM @ UCLA
other
Prize PoolNon-cash Prize
Days Left3 days
LocationOnline
Date RangeMay 2, 2026 - May 3, 2026
End DateMay 3, 2026
CE
Zero to One Startup-a-thon
Claude Builders Club @ UW, Lavin E, ESEC
other
Prize Pool$5.8K
Days LeftEnded
LocationOnline
Date RangeApr 15, 2026 - Apr 24, 2026
End DateApr 24, 2026
NO
demo
None
other
Prize Pool$5
Days LeftEnded
LocationOnline
Date RangeApr 22, 2026 - Apr 24, 2026
End DateApr 24, 2026