Web Development Hackathons
Explore 199 web development hackathons. Hackathons building web apps, frontend and backend systems, and full-stack projects.
Hackathons
186
Avg Prize
$59K
Organizers
53
Tuesday, September 29, 2026
Ongoing
Bharat Agentic 2026
Online
Sep 22 – Sep 29, 2026aikart.coOnline
Artificial Intelligence
Web Development
Ongoing
Hack Days Turbhe
In Person
Sep 20 – Sep 29, 2026AITD EVENTSNavi Mumbai, India
Artificial Intelligence
Web Development
Social Impact
Ongoing
Build Your One-Person On-Chain Finance Business with SoSoValue
Online
Jun 28 – Sep 30, 2026SoSoValueOnline$4K
Web Development
Fintech
Data Science
Ongoing
Evorozen Apex: NextGen AI Buildathon
Online
Jul 17 – Sep 30, 2026EvorozenOnline
Artificial Intelligence
Web Development
Ongoing
Evorozen Apex: NextGen AI Buildathon
Online
Jul 17 – Sep 30, 2026EvorozenOnline
Artificial Intelligence
Web Development
Ongoing
DOGFOOD 2026 — Build the Open-Source Platform That Will Judge You
Online
Sep 1 – Sep 30, 2026RaptorsOnline
Open Source
Social Impact
Web Development
Ongoing
Build with CMC: API Hackathon
Online
Sep 2 – Oct 1, 2026DoraHacksOnline
Web Development
Data Science
Developer Tools
Ongoing
AWS Trainium Frontier Competition
Online
Aug 7 – Oct 1, 2026Amazon Web ServicesOnline$40K
Data Science
Cloud
Web Development
Ongoing
Arbitrum Open House Singapore: Online Buildathon
Online
Sep 13 – Oct 4, 2026Arbitrum FoundationOnline$115K
Web Development
Blockchain
Ongoing
HCLTech Java Engineering Hiring Challenge
Online
Sep 5 – Oct 4, 2026Online
Web Development
Mobile Development
DevOps
Ongoing
Capitol
In Person
Sep 1 – Oct 9, 2026Washington, United States
Web Development
Social Impact
Community
Ongoing
VIBEATHON 26
Hybrid
Sep 26 – Oct 10, 2026A.C. Patil College of Engineering Department of Information TechnologyMaharashtra, India$300
Web Development
Cybersecurity
Artificial Intelligence
Ongoing
HackDays 2.0
In Person
Sep 15 – Oct 10, 2026Galgotias College of Engineering & Technology (GCET), Greater NoidaGreater Noida, India
Web Development
Artificial Intelligence
Edtech
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: Rise of Intelligence
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
HACK47: OFFGRID
Online
Sep 15 – Oct 15, 2026Hack47Online
Artificial Intelligence
Open Source
Web Development
Ongoing
CodeStorm 2026: FutureForge
Online
Jul 31 – Oct 15, 2026Online
Innovation
Web Development
Mobile Development
Ongoing
MLAI Hackathon
Online
Sep 18 – Oct 16, 2026Mạng Lưới AIOnline
Artificial Intelligence
Web Development
Edtech
Ongoing
Signalpost: Build An Agent That Finds Company Information
Online
Sep 12 – Oct 17, 2026builderr.aiOnline$2K
Artificial Intelligence
Data Science
Web Development
Ongoing
LUMA Hackathon (October 11th - 18th)
Online
Jun 26 – Oct 18, 2026LUMAOnline
Data Science
Web Development
Artificial Intelligence
Ongoing
Building With IBM Bob Hackathon
Online
Sep 28 – Oct 18, 2026IBMOnline
Social Impact
Blockchain
Web Development
Ongoing
Intellect Global Hackathon
Online
Dec 5, 2021 – Dec 31, 2026Intellect Design ArenaOnline
Fintech
Web Development
Hackathon
Ongoing
Student Competition 2026 - 4th Edition
In Person
Sep 25, 2026 – Feb 26, 2027LVD GroupGullegem, Belgium
Web Development
Ongoing
Aurora Global Hackathon
Online
Mar 31, 2026 – Apr 1, 2027no hostOnline$1K
Web Development
Mobile Development
Artificial Intelligence
Ongoing
Hackonomics 2027
Online
Jul 1, 2026 – Jun 1, 2027hackonomicsOnline
Data Science
Web Development
Social Impact
Ongoing
DEMOKHE
Online
Mar 24, 2026 – Mar 24, 2030HacKSUOnline
Data Science
Web Development
Artificial Intelligence
Upcoming
YouCam API Skin AI & eCommerce VTO Hackathon
Online
Sep 29 – Nov 2, 2026Perfect CorpOnline$6K
Web Development
Artificial Intelligence
Developer Tools
Upcoming
The AI Conference Hack Day 2026
In Person
Sep 29 – Sep 30, 2026Adam ChanSan Francisco, United States
Artificial Intelligence
Web Development
Wednesday, September 30, 2026
Thursday, October 1, 2026
Friday, October 2, 2026
Saturday, October 3, 2026
Upcoming
Codeutsava X.0
In Person
Oct 3 – Oct 4, 2026Raipur, India
Web Development
Mobile Development
Artificial Intelligence
Upcoming
PAYTM Ai Hackathon -Design Competition
Hybrid
Oct 3, 2026Delhi, India$1K
Web Development
Mobile Development
Artificial Intelligence
Upcoming
Vienna Hub - 7th Hack-Nation Global AI Hackathon
In Person
Oct 3 – Oct 4, 2026Benjamin WinklerWien, Austria
Artificial Intelligence
Web Development
Upcoming
October 3 Hackathon
In Person
Oct 3 – Oct 4, 2026Frontier TowerSan Francisco, United States
Web Development
Mobile Development
Artificial Intelligence
Past hackathons
Recently ended — many run again.
Sunday, September 27, 2026
Past
HackWimbledon September 2026 #2
In Person
Sep 27, 2026Neil LambethLondon, United Kingdom
Web Development
Mobile Development
Robotics
Past
HackIndia Spark 10 – Uttarakhand (North Region)
In Person
Sep 27 – Sep 28, 2026HackIndiaHaldwani, India
Web Development
Artificial Intelligence
Past
EmberGround AI Hackathon 2026 | Bangalore
In Person
Sep 27, 2026Daud ibrahim DewanBengaluru, India
Artificial Intelligence
Web Development
Past
HackNite
In Person
Sep 27, 2026ACM at UCCincinnati, United States
Edtech
Web Development
Student
Saturday, September 26, 2026
Past
Shower Hacks
In Person
Sep 26 – Sep 27, 2026Shower HacksSan Francisco, United States$10K
Artificial Intelligence
Social Impact
Web Development
Past
hackUMBC 2026
In Person
Sep 26 – Sep 27, 2026hackUMBCBaltimore, United States
Artificial Intelligence
Data Science
Web Development
Past
GameDev Bonfire Vol.6
In Person
Sep 26, 2026IGDA AzerbaijanAzerbaijan
Game Development
Web Development
Past
HACKATHON WINNERS’ ULTIMATE HACKATHON
In Person
Sep 26, 2026GAIIN OfficialMalmö, Sweden
Web Development
Mobile Development
Artificial Intelligence
Past
Hack-e-Awadh
In Person
Sep 26, 2026Lucknow, India
Web Development
Mobile Development
Artificial Intelligence
Past
Builders Day by HackUnion
In Person
Sep 26, 2026Hyderabad, India
Web Development
Mobile Development
Artificial Intelligence
