Web Development Hackathons
Explore 50 web development hackathons. Hackathons building web apps, frontend and backend systems, and full-stack projects.
Hackathons
37
Avg Prize
$29K
Organizers
54
Sunday, September 13, 2026
Ongoing
Intellect Global Hackathon
Online
Dec 5, 2021 – Dec 31, 2026Intellect Design ArenaOnline
Fintech
Web Development
Hackathon
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
Snowflake CoCo CLI Hackathon - GCC Edition
Online
Jun 15 – Sep 30, 2026Online
Cloud
Open Source
Web Development
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
CALL-E: Your Code Is Calling
Online
Jul 23 – Sep 14, 2026CALL-EOnline$10K
Artificial Intelligence
Web Development
Ongoing
CodeStorm 2026: FutureForge
Online
Jul 31 – Sep 30, 2026Online
Innovation
Web Development
Mobile Development
Ongoing
AWS Trainium Frontier Competition
Online
Aug 7 – Oct 1, 2026Amazon Web ServicesOnline$40K
Data Science
Cloud
Web Development
Ongoing
Agents for Humans Hackathon
Online
Aug 10 – Sep 15, 2026AmazonOnline$40K
Cloud
Artificial Intelligence
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
Build with CMC: API Hackathon
Online
Sep 9 – Oct 1, 2026DoraHacksOnline
Web Development
Data Science
Ongoing
Arbitrum Open House Singapore: Online Buildathon
Online
Sep 13 – Oct 4, 2026Arbitrum FoundationOnline$115K
Web Development
Blockchain
Monday, September 14, 2026
Tuesday, September 15, 2026
Friday, September 18, 2026
Upcoming
DSU DEVHACK 3.0
In Person
Sep 18 – Sep 19, 2026Ramanagara, India
Data Science
Artificial Intelligence
Web Development
Upcoming
MLAI Hackathon
Online
Sep 18 – Oct 16, 2026Mạng Lưới AIOnline
Artificial Intelligence
Web Development
Edtech
Upcoming
Hack the North 2026
In Person
Sep 18 – Sep 20, 2026Hack the NorthWaterloo, Canada
Artificial Intelligence
Web Development
Saturday, September 19, 2026
Upcoming
Drop2Life
In Person
Sep 19 – Sep 20, 2026Drop2LifeIndia$45K
Sustainability
Healthtech
IoT
Upcoming
Gotong Royong Hackathon
In Person
Sep 19, 2026Independent Student OrganizerKecamatan Tenggilis Mejoyo, Indonesia$20
Beginner Friendly
Web Development
Social Impact
Upcoming
Hack ITP: A hackathon for builders
In Person
Sep 19, 2026Atlanta Tech VillageAtlanta, United States
Web Development
Mobile Development
Artificial Intelligence
Upcoming
Expo 26 hackathon
In Person
Sep 19, 2026abbvieJeddah, Saudi Arabia
Data Science
Web Development
Artificial Intelligence
Upcoming
The Executable World: A Full Stack AI Hackathon & Mixer
In Person
Sep 19 – Sep 20, 2026Vicky LSan Francisco, United States
Artificial Intelligence
Cloud
Web Development
Upcoming
Flushing Tech Meetup - Hackathon at TIQC
In Person
Sep 19, 2026Tech Incubator at Queens CollegeQueens County, United States
Web Development
Mobile Development
Artificial Intelligence
Past hackathons
Recently ended — many run again.
Sunday, September 13, 2026
Saturday, September 12, 2026
Past
Runway to Reality: AI Fashion Hackathon
In Person
Sep 12, 2026vonageNew York, United States$2K
Artificial Intelligence
Web Development
Mobile Development
Past
Community Tooling Hack Day #2
In Person
Sep 12, 2026Edward SaperiaLondon, United Kingdom
Social Impact
Web Development
Artificial Intelligence
Past
Metamorph 2.0
In Person
Sep 12 – Sep 13, 2026Panihati, India
Web Development
Blockchain
Social Impact
Past
Designathon
In Person
Sep 12 – Sep 13, 2026Manipal University (MU), JaipurJaipur, India$240
Web Development
Mobile Development
Artificial Intelligence
Friday, September 11, 2026
Past
HackKentucky
In Person
Sep 11 – Sep 12, 2026KYXLouisville, United States$4K
Artificial Intelligence
Web Development
Data Science
Past
Hack the Track
In Person
Sep 11 – Sep 12, 2026Prospect, United States
Web Development
Mobile Development
Community
Past
Build with YOU: The Live Web Agent Hackathon
In Person
Sep 11, 2026Jacob RissmanNew York, United States$1K
Artificial Intelligence
Data Science
Web Development
Past
Hackrit
In Person
Sep 11 – Sep 12, 2026Kolkata, India
Web Development
Mobile Development
Artificial Intelligence
Past
Shared OS Hackathon
Online
Sep 11 – Sep 13, 2026Systemind, IncOnline$6K
Artificial Intelligence
Cloud
Web Development
Past
Qualcomm UNO Q Hack Night #2
In Person
Sep 11, 2026Adam ChanSanta Clara, United States
Artificial Intelligence
IoT
Web Development