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: Ended"AI for Health & Wellness Challenge," "Decentralized Health Innovations Hackathon"
Jul 28, 2025 - Sep 15, 2025
Prize Pool
$5.0K
Status: EndedSomnia Mini Games Hackathon
Jul 21, 2025 - Aug 11, 2025
Prize Pool
$5.0K
Status: EndedBCH Blaze 2025
Sep 1, 2025 - Nov 23, 2025
Prize Pool
BCH10.0K
Status: EndedUK AI Agent Hackathon Ep2 | The Largest Web3 x AI Hackathon in Europe
Aug 2, 2025 - Aug 23, 2025
Prize Pool
$22.5K
Status: EndedStellar Ideaton: Build, Create & Win on the Road to Meridian
Aug 7, 2025 - Aug 10, 2025
Prize Pool
$5.0K
Status: EndedICP x FET - NEXTGEN AGENTS HACKATHON
Jul 31, 2025 - Aug 26, 2025
Prize Pool
$5.0K
Status: EndedStellar LATAM Ideathon 2 – Track Universitario: Construye, Crea y Gana
Sep 26, 2025 - Oct 4, 2025
Prize Pool
$1.0K
Status: EndedSomnia DeFi Mini Hackathon
Aug 13, 2025 - Sep 19, 2025
Prize Pool
$15.0K
Status: EndedBUIDL with REACT: Fast-track to mainnet
Sep 1, 2025 - Sep 30, 2025
Prize Pool
$50.0K
Status: EndedWeapons of Liberation Hackathon
Aug 4, 2025 - Aug 21, 2025
Prize Pool
BTC1.5K
Status: EndedICP - WCHL25 - National Round
Jul 31, 2025 - Aug 26, 2025
Prize Pool
$300.0K
Status: Ended제 1회 대한민국 스테이블코인 해커톤 (Korea Stablecoin Hackathon)
Aug 3, 2025 - Aug 27, 2025
Prize Pool
$75.0K
Status: EndedStellar Hacks: KALE x Reflector
Aug 18, 2025 - Sep 8, 2025
Prize Pool
XLM12.0K
Status: EndedStacks Builders Competition
Aug 7, 2025 - Sep 4, 2025
Prize Pool
STX3.0K
Status: EndedDomainFi Challenge
Aug 8, 2025 - Oct 4, 2025
Prize Pool
$1.0M
Status: EndedCortensor Hackathon #1
Aug 8, 2025 - Aug 31, 2025
Prize Pool
$2.0K
Status: EndedSeedify Vibecoins
Aug 14, 2025 - Dec 14, 2025
Prize Pool
$75.0K
Status: EndedControversial Climate Code- C3
Sep 13, 2025 - Nov 9, 2025
Prize Pool
Non-cash Prize
Status: EndedAleph Hackathon - The biggest hackathon in LATAM
Aug 29, 2025 - Aug 31, 2025
Prize Pool
$50.0K
Status: EndedKwala Hacker House: Next-Generation Web3 Gaming & NFT Innovation
Sep 6, 2025 - Nov 7, 2025
Prize Pool
$1.5K