Web Development Hackathons in 2026
Explore 50 web development hackathons in 2026. Hackathons building web apps, frontend and backend systems, and full-stack projects.
Hackathons
50
Avg Prize
$109K
Organizers
41
Tuesday, September 15, 2026
Ongoing
DEMOKHE
Online
Mar 24, 2026 – Mar 24, 2030HacKSUOnline
Data Science
Web Development
Artificial Intelligence
Ongoing
Aurora Global Hackathon
Online
Mar 31, 2026 – Apr 1, 2027no hostOnline$1K
Web Development
Mobile Development
Artificial Intelligence
Ongoing
LUMA Hackathon (October 11th - 18th)
Online
Jun 26 – Oct 18, 2026LUMAOnline
Data Science
Web Development
Artificial Intelligence
Ongoing
Build Your One-Person On-Chain Finance Business with SoSoValue
Online
Jun 28 – Sep 30, 2026SoSoValueOnline$4K
Web Development
Fintech
Data Science
Ongoing
Hackonomics 2027
Online
Jul 1, 2026 – Jun 1, 2027hackonomicsOnline
Data Science
Web Development
Social Impact
Ongoing
Evorozen Apex: NextGen AI Buildathon
Online
Jul 17 – Sep 20, 2026EvorozenOnline
Artificial Intelligence
Web Development
Ongoing
Evorozen Apex: NextGen AI Buildathon
Online
Jul 18 – Sep 21, 2026EvorozenOnline
Web Development
Data Science
Artificial Intelligence
Ongoing
CodeStorm 2026: FutureForge
Online
Jul 31 – Sep 30, 2026Online
Web Development
Mobile Development
Artificial Intelligence
Ongoing
AWS Trainium Frontier Competition
Online
Aug 7 – Oct 1, 2026Amazon Web ServicesOnline$40K
Data Science
Cloud
Web Development
Ongoing
GitHub Repo Value Check
Online
Aug 14 – Sep 20, 2026Online
Open Source
Web Development
Innovation
Ongoing
AINU Chatathon 2026
In Person
Aug 25 – Sep 19, 2026AINUBoston, United States$5K
Data Science
Artificial Intelligence
Web Development
Ongoing
Build, Ship, Shape: Amazon Developer Hackathon
Online
Aug 31 – Oct 23, 2026AmazonOnline$138K
Cloud
Artificial Intelligence
Web Development
Ongoing
Capitol
In Person
Sep 1 – Oct 9, 2026Washington, United States
Web Development
Social Impact
Community
Ongoing
HCLTech Java Engineering Hiring Challenge
Online
Sep 5 – Oct 4, 2026Online
Web Development
Mobile Development
DevOps
Ongoing
BOSS Battle
Online
Sep 6 – Oct 5, 2026Online
Game Development
Web Development
Innovation
Ongoing
Build with CMC: API Hackathon
Online
Sep 9 – Oct 1, 2026DoraHacksOnline
Web Development
Data Science
Ongoing
Signalpost: Build An Agent That Finds Company Information
Online
Sep 12 – Oct 17, 2026builderr.aiOnline$2K
Artificial Intelligence
Data Science
Web Development
Ongoing
Arbitrum Open House Singapore: Online Buildathon
Online
Sep 13 – Oct 4, 2026Arbitrum FoundationOnline$115K
Web Development
Blockchain
Ongoing
WebRush — 6-Hour Frontend Hackathon
Online
Sep 13 – Sep 27, 2026Frontend ArenaOnline
Web Development
Ongoing
Pixels to Products — Cloudinary AI Hackathon 2026
Online
Sep 14 – Oct 3, 2026HackIndiaOnline
Artificial Intelligence
Web Development
Ongoing
HACK47: OFFGRID
Online
Sep 15 – Oct 15, 2026Hack47Online
Artificial Intelligence
Open Source
Web Development
