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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Status: EndedVibe Coding Days
Jun 16, 2025 - Jun 29, 2025
Prize Pool
$1.0K
Status: EndedRWAi Developer Sprint with XDC, ElizaOS and Crossmint
Apr 30, 2025 - May 26, 2025
Prize Pool
Non-cash Prize
Status: EndedCore Connect Global Buildathon
May 20, 2025 - Aug 16, 2025
Prize Pool
$1.2M
Status: EndedChainOpera Hackathon - Building Decentralized AI Agents
Jun 27, 2025 - Jul 27, 2025
Prize Pool
$10.0K
Status: EndedSonic Summit Jailbreak Hackathon
May 6, 2025 - May 8, 2025
Prize Pool
$15.0K
Status: EndedCosmos Builders Program - Brazil
May 7, 2025 - Jun 1, 2025
Prize Pool
R$8.0K
Status: EndedOKX Solana Accelerate Hackathon
May 5, 2025 - May 27, 2025
Prize Pool
$30.0K
Status: EndedVietnam Aptos Hackathon
May 14, 2025 - Jul 18, 2025
Prize Pool
$400.0K
Status: EndedMetis Hyperion: HyperHack
May 15, 2025 - Aug 7, 2025
Prize Pool
$200.0K
Status: EndedCircle Developer Bounties - Group 1
Jun 1, 2025 - Sep 1, 2025
Prize Pool
$20.0K
Status: EndedSeedify Venture Studio
May 22, 2025 - Aug 22, 2025
Prize Pool
$200.0K
Status: EndedGraphite Network Reputation Hackathon
May 22, 2025 - Jun 4, 2025
Prize Pool
@G2.0K
Status: EndedAPECHAIN Africa Hackathon UCC
Jun 16, 2025 - Jun 25, 2025
Prize Pool
$3.0K
Status: EndedHedera Hello Future: Origins Hackathon 2025
Jun 10, 2025 - Aug 9, 2025
Prize Pool
$150.0K
Status: Endedš ļø Cere Network Builder's Forge
Jun 1, 2025 - Dec 31, 2025
Prize Pool
$5.0K
Status: EndedAImpact Solana AI App Challange
May 26, 2025 - Jun 15, 2025
Prize Pool
$2.0K
Status: EndedGUI INU Ideathon: Build with $GUI
Jun 6, 2025 - Aug 2, 2025
Prize Pool
$10.0K
Status: Endedai/accelathon on Sei
Jun 24, 2025 - Aug 25, 2025
Prize Pool
$1.0M
Status: EndedMorph's Consumer Buildathon
Jun 23, 2025 - Aug 14, 2025
Prize Pool
$15.0K
Status: EndedZetaChain X Google Cloud AI Buildathon
Aug 2, 2025 - Aug 31, 2025
Prize Pool
$9.0K