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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🛠️ Cere Network Builder's Forge
Cere Network
otherethereumbase
Prize Pool$5.0K
Days LeftEnded
LocationOnline
Date RangeJun 1, 2025 - Dec 31, 2025
End DateDec 31, 2025
AImpact Solana AI App Challange
OSTOLEX
othersolanabug bounty
Prize Pool$2.0K
Days LeftEnded
LocationOnline
Date RangeMay 26, 2025 - Jun 15, 2025
Submission DeadlineJun 10, 2025
GUI INU Ideathon: Build with $GUI
GUI Inu
otheraptosmove
Prize Pool$10.0K
Days LeftEnded
LocationOnline
Date RangeJun 6, 2025 - Aug 2, 2025
End DateAug 2, 2025
ai/accelathon on Sei
Sei Development Foundation
otherseiaws
Prize Pool$1.0M
Days LeftEnded
LocationOnline
Date RangeJun 24, 2025 - Aug 25, 2025
End DateAug 25, 2025
Morph's Consumer Buildathon
Morph
otherethereumdefi
Prize Pool$15.0K
Days LeftEnded
LocationOnline
Date RangeJun 23, 2025 - Aug 14, 2025
Submission DeadlineAug 4, 2025
ZetaChain X Google Cloud AI Buildathon
ZetaChain
bitcoinothersolana
Prize Pool$9.0K
Days LeftEnded
LocationOnline
Date RangeAug 2, 2025 - Aug 31, 2025
End DateAug 31, 2025
Stellar Hacks: Blend
Stellar Development Foundation
otherrustdefi
Prize PoolXLM6.0K
Days LeftEnded
LocationOnline
Date RangeJun 18, 2025 - Jul 7, 2025
End DateJul 7, 2025
Sonic Hackathon: S Tier University Edition
Sonic Labs
otherethereumhybrid
Prize PoolS100.0K
Days LeftEnded
LocationOnline
Date RangeAug 1, 2025 - Sep 8, 2025
Submission DeadlineSep 8, 2025
Agentic Mini Apps Hack on Nostr Round 1
YakiHonne
bitcoinotherpayments
Prize PoolBTC10.0K
Days LeftEnded
LocationOnline
Date RangeJun 20, 2025 - Aug 10, 2025
End DateAug 10, 2025
Umi Try-a-thon
Umi
othermovenft development
Prize Pool$2.0K
Days LeftEnded
LocationOnline
Date RangeJun 20, 2025 - Jul 17, 2025
End DateJul 17, 2025
ICP - WCHL25 - Qualification Round
WCHL
bitcoinotherrust
Prize Pool$300.0K
Days LeftEnded
LocationOnline
Date RangeJul 1, 2025 - Jul 26, 2025
Submission DeadlineJul 26, 2025
Payments Hack-a-TON
The Open Network
othertonfunc
Prize Pool$10.0K
Days Left90 days
LocationOnline
Date RangeJun 23, 2025 - Jul 26, 2025
Submission DeadlineJul 26, 2026
Kaia Wave Stablecoin Summer Hackathon
Kaia
otherethereumdune analytics
Prize Pool$165.0K
Days LeftEnded
LocationOnline
Date RangeAug 24, 2025 - Sep 21, 2025
Submission DeadlineSep 17, 2025
OKX ETHCC Hackathon
OKX
otherethereumpolygon
Prize Pool$30.0K
Days LeftEnded
LocationOnline
Date RangeJul 3, 2025 - Aug 11, 2025
Submission DeadlineAug 10, 2025
Nostr Wallet Connect Hackathon Grant
Geyser Grants
bitcoinotherwalletconnect
Prize Pool$10.0K
Days LeftEnded
LocationOnline
Date RangeJul 1, 2025 - Jul 7, 2025
End DateJul 7, 2025
Stellar LATAM Hackathon
Blockchain Acceleration Foundation
other
Prize Pool$3.0K
Days LeftEnded
LocationOnline
Date RangeJul 11, 2025 - Jul 14, 2025
End DateJul 14, 2025
bitsCrunch x AI Builders Hack 2025
bitsCrunch
otherethereumsolana
Prize Pool$5.0K
Days LeftEnded
LocationOnline
Date RangeJul 7, 2025 - Aug 4, 2025
End DateAug 4, 2025
CrossFi Hackathon #2
CrossFi
otherethereumcosmos
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeJul 7, 2025 - Aug 5, 2025
End DateAug 5, 2025
OneHack 2025
Onelabs Pte Ltd
othergamefidefi
Prize Pool$12.5K
Days LeftEnded
LocationOnline
Date RangeJul 31, 2025 - Aug 19, 2025
Submission DeadlineAug 20, 2025
VERY Hackathon [Extended]
Very Network
othersoliditytypescript
Prize Pool$73.0K
Days LeftEnded
LocationOnline
Date RangeJul 6, 2025 - Dec 31, 2025
Submission DeadlineDec 31, 2023