Blockchain & Web3 Hackathons in 2026
Explore 600 blockchain & Web3 hackathons in 2026. Hackathons exploring blockchain technology, smart contracts, DeFi, DAOs, and decentralized applications.
Hackathons
44
Avg Prize
$134K
Organizers
61
Monday, October 12, 2026
Ongoing
Crypto Worldfair's Buildstation — Bangalore
In Person
Oct 12, 2026Bengaluru, Karnataka, India
Hackathon
Blockchain
Ongoing
WEEX AI Wars II：人类 vs AI
Online
Jul 7 – Oct 12, 2026WEEX LABsOnline$200K
Artificial Intelligence
Web Development
Blockchain
Ongoing
WEEX AI Wars II：人類 vs AI
Online
Jul 7 – Oct 12, 2026WEEX LABsOnline$200K
Artificial Intelligence
Web Development
Blockchain
Ongoing
Build Station Dublin | Colosseum Hackathon
In Person
Sep 28 – Oct 12, 2026Superteam IrelandDublin 1, Ireland
Blockchain
Ongoing
All you can do with AI
Online
Oct 7 – Oct 12, 2026SelfOnline
Artificial Intelligence
Social Impact
Blockchain
Ongoing
Crypto World's Fair Hackathon
Online
Sep 7 – Oct 12, 2026ColosseumOnline$2.5M
Blockchain
Ongoing
CodeAstra 2.0 – 24-Hour Offline Hackathon
In Person
Oct 1 – Oct 13, 2026Association of Budding Information Technocrats (ABIT), RGITMumbai, India$1K
Cloud
Artificial Intelligence
Blockchain
Ongoing
Build Station - Colosseum Crypto World's Fair
In Person
Oct 5 – Oct 13, 2026Toronto, Ontario, Canada
Hackathon
Blockchain
Ongoing
Arc Microgrants | Circle
Online
Sep 16 – Oct 15, 2026CircleOnline$10K
Blockchain
Cloud
Ongoing
Building With IBM Bob Hackathon
Online
Sep 28 – Oct 18, 2026IBMOnline
Social Impact
Blockchain
Web Development
Ongoing
Bittensor Global Subnet Hackathon
Online
Aug 21 – Oct 19, 2026BittensorOnline$10K
Artificial Intelligence
Blockchain
Ongoing
From Vision to Impact: Building Web3 for Social Good — Collaborate. Innovate. Build for Good 2026
In Person
Aug 26 – Oct 25, 2026School of Computing and Information Systems, SMUTBA
Blockchain
Social Impact
Climate Tech
Ongoing
IEEE ClimateChain Global Hackathon
Online
Oct 5 – Oct 25, 2026IEEE TurkeyOnline$3K
Climate Tech
Blockchain
Artificial Intelligence
Ongoing
Build Privacy-First Apps on Midnight
Online
Sep 29 – Oct 26, 2026MidnightOnline$4K
Blockchain
Data Science
Ongoing
Bitmela Launchpad: Ideathon 01
In Person
Jul 22 – Oct 31, 2026BitmelaJaipur, India$2K
Artificial Intelligence
Cloud
Blockchain
Ongoing
BLI Legal Tech Hackathon 2
Online
May 15 – Nov 1, 2026Blockchain Legal InstituteOnline$20K
Blockchain
Artificial Intelligence
Fintech
Ongoing
MDBA Youth Blockchain Hackathon
Online
Feb 27 – Nov 1, 2026Blockchain Legal InstituteOnline$50K
Blockchain
Artificial Intelligence
Social Impact
Ongoing
Kritical Hacks 2026
In Person
Sep 23 – Nov 1, 2026Indira Gandhi Delhi Technical University for Women (IGDTUW), DelhiDelhi, India$2K
Artificial Intelligence
Blockchain
Edtech
Ongoing
Portaldot Hacker house 2026
Online
Sep 29 – Nov 6, 2026PortaldotOnline$5K
Blockchain
Social Impact
Data Science
Ongoing
HerHack
Hybrid
Oct 7 – Nov 10, 2026ECHELON INSTITUTE OF TECHNOLOGYFaridabad, India$2K
Artificial Intelligence
Blockchain
IoT
Ongoing
Solana Hackathon 2026
Online
Oct 11 – Nov 16, 2026Encode ClubOnline
Intermediate
Hackathon
Blockchain
Ongoing
Hack in Hills ’26
In Person
Sep 9 – Nov 21, 2026Galgotias University (GU), Greater NoidaManali, India
Blockchain
Artificial Intelligence
Ongoing
BCH BLAZE 2026
Online
Oct 10 – Nov 21, 2026BCH BlazeOnline$8K
Blockchain
Social Impact
Fintech
Ongoing
NexHack 2.0
In Person
Aug 15 – Nov 25, 2026Geeta University, Naultha, PanipatPanipat, India$600
Blockchain
Cloud
Artificial Intelligence
Ongoing
AlgoBharat Regional Hackathons
Online
Mar 19 – Dec 31, 2026AlgorandOnline
Blockchain
Fintech
Artificial Intelligence