ethereum Hackathons
Discover ethereum hackathons in Web3 and blockchain.
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Somnia Data Streams Mini Hackathon
Somnia Network
otherethereumsolidity
Prize Pool$3.0K
Days LeftEnded
LocationOnline
Date RangeNov 4, 2025 - Nov 29, 2025
DeSci Tools Buildathon
Unbound Science
otherethereummonad
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeNov 17, 2025 - Nov 22, 2025
GenLayer Nov 2025 Hackathon
GenLayer
otherethereumbase
Prize Pool$500
Days LeftEnded
LocationOnline
Date RangeNov 8, 2025 - Nov 11, 2025
Road to Haulout : Walrus Buildathon
First Movers
otherethereummove
Prize Pool$800
Days LeftEnded
LocationOnline
Date RangeNov 7, 2025 - Nov 9, 2025
Reactive Bounties 2.0
Reactive Network
otherethereumarbitrum
Prize PoolREA6.0K
Days LeftEnded
LocationOnline
Date RangeNov 16, 2025 - Jan 5, 2026
Cronos x402 Paytech Hackathon
Cronos
otherethereumcosmos
Prize Pool$42.0K
Days LeftEnded
LocationOnline
Date RangeNov 27, 2025 - Jan 23, 2026
Fortify Labs Web3 Startup Studio by TZ APAC | Application Round | Tezos
TZ APAC
otherethereumtezos
Prize Pool$175.0K
Days LeftEnded
LocationOnline
Date RangeJan 13, 2026 - Feb 15, 2026
Cortensor Hackathon #4
Cortensor
otherethereumarbitrum
Prize PoolCOR3.0K
Days LeftEnded
LocationOnline
Date RangeJan 19, 2026 - Feb 28, 2026
Liquify Indexer API Hackathon: $100,000 Total Prize Pool
Liquify
otherethereumarbitrum
Prize Pool$15.0K
Days Left102 days
LocationOnline
Date RangeJan 21, 2026 - Jun 14, 2026
48 Weeks. 48 Blockchains.
CODEQUITY
otherethereumsolana
Prize Pool$10.0K
Days Left285 days
LocationOnline
Date RangeFeb 1, 2026 - Dec 31, 2026
Midl VibeHack: Build & Share $3,000 in Rewards / Sponsored by Xverse
Midl
bitcoinotherethereum
Prize Pool$3.0K
Days LeftEnded
LocationOnline
Date RangeFeb 9, 2026 - Feb 24, 2026
RE{DEFINE} HACKATHON | Starknet
Starknet Foundation
bitcoinotherethereum
Prize Pool$21.5K
Days LeftEnded
LocationOnline
Date RangeFeb 1, 2026 - Mar 1, 2026
XS
xStocks Hackathon EthCC: Market Open
xStocks
otherethereumsolidity
Prize Pool$75.0K
Days Left28 days
LocationOnline
Date RangeMar 31, 2026 - Apr 2, 2026
BLI Legal Tech Hackathon 2
Blockchain Legal Institute
bitcoinotherethereum
Prize Pool$50.0K
Days Left241 days
LocationOnline
Date RangeFeb 27, 2026 - Nov 1, 2026
Somnia Reactivity Mini Hackathon
Somnia Network
otherethereumsolidity
Prize Pool$3.0K
Days Left15 days
LocationOnline
Date RangeFeb 24, 2026 - Mar 20, 2026
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