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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Build & Brew - Espresso Global Hackathon
Espresso
otherethereumarbitrum
Prize Pool$100.0K
Days Left26 days
LocationOnline
Date RangeFeb 20, 2025 - Apr 2, 2025
Cambrian Hack
Cambrian
othersolanarust
Prize Pool$10.0K
Days LeftEnded
LocationOnline
Date RangeFeb 20, 2025 - Mar 23, 2025
Seeds Of Agentic Future
Seedify
otherremoteai agents
Prize Pool$100.0K
Days LeftEnded
LocationOnline
Date RangeFeb 21, 2025 - Mar 10, 2025
Agent Singularity: Talks & Hackathon
Sparsity
otherai agentsai and blockchain
Prize Pool$1.0K
Days LeftEnded
LocationOnline
Date RangeMar 1, 2025 - Mar 2, 2025
Oxford Blockchain Society Cardano Hybrid Hackathon - February 2025
Oxford Blockchain Society
othercardanoremote
Prize Pool$4.0K
Days LeftEnded
LocationOnline
Date RangeFeb 22, 2025 - Feb 22, 2025
NERD CAMP by Polkadot
NERDCONF
otherpolkadotrust
Prize Pool$7.0K
Days LeftEnded
LocationOnline
Date RangeJun 8, 2025 - Jun 8, 2025
Let's Try ICP
ICP HUB Ukraine
otherrusttypescript
Prize Pool$5.0K
Days Left24 days
LocationOnline
Date RangeMar 15, 2025 - Mar 30, 2025
AI BUIDL Lab: Use Prompt Engineering to Build Real Web3 Apps on Rootstock
Rootstock
bitcoinotheralchemy sdk
Prize Pool$15.0K
Days Left56 days
LocationOnline
Date RangeApr 10, 2025 - Apr 30, 2025
Meant to Move Hackathon
NPC Group
otherpolygonmove
Prize Pool$2.0K
Days LeftEnded
LocationOnline
Date RangeMar 5, 2025 - Mar 12, 2025
Endgame hackathon - AI cutting edge projects
Endgame
otherethereumsolana
Prize Pool$120.0K
Days LeftEnded
LocationOnline
Date RangeMar 10, 2025 - Apr 24, 2025
Hedera AI Agents Hackathon
Hedera
otherhederaai agents
Prize Pool$30.0K
Days LeftEnded
LocationOnline
Date RangeApr 11, 2025 - May 3, 2025
Aleph Hackathon 25'
Aleph Hackathon
otherpolkadotzksync
Prize Pool$44.0K
Days LeftEnded
LocationOnline
Date RangeMar 21, 2025 - Mar 23, 2025
Colosseum Hackathon PT
Superteam Portugal Colosseum
othersolanaremote
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 8, 2025 - Mar 31, 2025
With Vitalik Buterin: Quantifying Contributions of Open Source Projects to the Ethereum Universe
Pond
otherethereumpython
Prize Pool$50.0K
Days Left66 days
LocationOnline
Date RangeMar 7, 2025 - May 7, 2025
Ink!ubator 2.0 Hackathon: ink! Smart Contracts
Ink!ubator 2.0
otherpolkadotrust
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeMar 13, 2025 - Sep 13, 2025
Stellar Build Better Hackathon
Stellar Development Foundation
otherdefipayments
Prize Pool$25.0K
Days LeftEnded
LocationOnline
Date RangeMar 11, 2025 - Mar 31, 2025
YZiLabs: AI x Fintech Virtual Hackathon
YZiLabs
otherremotepayments
Prize PoolNon-cash Prize
Days LeftEnded
LocationOnline
Date RangeApr 13, 2025 - Apr 27, 2025
Hedera Hashathon: Nairobi Edition
Hedera
otherhederadefi
Prize Pool$7.0K
Days LeftEnded
LocationOnline
Date RangeMar 24, 2025 - Apr 1, 2025
Round 1 - Farm Creation Wizard
Dexponent Foundation
otherethereumbase
Prize Pool$500.0K
Days LeftEnded
LocationOnline
Date RangeApr 20, 2025 - May 2, 2025
Crypto Dapp Grant Program
Felix' test organization
bitcoinothersolana
Prize Pool$1.3M
Days LeftEnded
LocationOnline
Date RangeMar 14, 2025 - Dec 30, 2025