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Online Web3 Hackathons

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Stellar Development FoundationStatus: Ended

Stellar Hacks: Blend

Jun 18, 2025 - Jul 7, 2025

Prize Pool

XLM6.0K

Sonic LabsStatus: Ended

Sonic Hackathon: S Tier University Edition

Aug 1, 2025 - Sep 8, 2025

Prize Pool

S100.0K

YakiHonneStatus: Ended

Agentic Mini Apps Hack on Nostr Round 1

Jun 20, 2025 - Aug 10, 2025

Prize Pool

BTC10.0K

UmiStatus: Ended

Umi Try-a-thon

Jun 20, 2025 - Jul 17, 2025

Prize Pool

$2.0K

WCHLStatus: Ended

ICP - WCHL25 - Qualification Round

Jul 1, 2025 - Jul 26, 2025

Prize Pool

$300.0K

The Open NetworkStatus: Ended

Payments Hack-a-TON

Jun 23, 2025 - Jul 26, 2025

Prize Pool

$10.0K

KaiaStatus: Ended

Kaia Wave Stablecoin Summer Hackathon

Aug 24, 2025 - Sep 21, 2025

Prize Pool

$165.0K

OKXStatus: Ended

OKX ETHCC Hackathon

Jul 3, 2025 - Aug 11, 2025

Prize Pool

$30.0K

Geyser GrantsStatus: Ended

Nostr Wallet Connect Hackathon Grant

Jul 1, 2025 - Jul 7, 2025

Prize Pool

$10.0K

Blockchain Acceleration FoundationStatus: Ended

Stellar LATAM Hackathon

Jul 11, 2025 - Jul 14, 2025

Prize Pool

$3.0K

bitsCrunchStatus: Ended

bitsCrunch x AI Builders Hack 2025

Jul 7, 2025 - Aug 4, 2025

Prize Pool

$5.0K

CrossFiStatus: Ended

CrossFi Hackathon #2

Jul 7, 2025 - Aug 5, 2025

Prize Pool

Non-cash Prize

Onelabs Pte LtdStatus: Ended

OneHack 2025

Jul 31, 2025 - Aug 19, 2025

Prize Pool

$12.5K

Very NetworkStatus: Ended

VERY Hackathon [Extended]

Jul 6, 2025 - Dec 31, 2025

Prize Pool

$73.0K

Stellar Development FoundationStatus: Ended

Stellar Hacks: Swaps and Vaults with PaltaLabs

Jul 14, 2025 - Aug 7, 2025

Prize Pool

XLM6.0K

"Lakshmi Gandi's Projects" Futuristic AI Health AssistantStatus: Ended

"AI for Health & Wellness Challenge," "Decentralized Health Innovations Hackathon"

Jul 28, 2025 - Sep 15, 2025

Prize Pool

$5.0K

Somnia NetworkStatus: Ended

Somnia Mini Games Hackathon

Jul 21, 2025 - Aug 11, 2025

Prize Pool

$5.0K

BCH BlazeStatus: Ended

BCH Blaze 2025

Sep 1, 2025 - Nov 23, 2025

Prize Pool

BCH10.0K

Imperial BlockchainStatus: Ended

UK AI Agent Hackathon Ep2 | The Largest Web3 x AI Hackathon in Europe

Aug 2, 2025 - Aug 23, 2025

Prize Pool

$22.5K

Tellus CooperativeStatus: Ended

Stellar Ideaton: Build, Create & Win on the Road to Meridian

Aug 7, 2025 - Aug 10, 2025

Prize Pool

$5.0K

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