Hackathons and builder programmes, by deadline.
UK university hackathons plus big online ones, soonest first. Once a deadline passes, it moves to the bottom and gets crossed out. Checked on 16 October 2026.
18 items
| Event | Deadline | Where and when | Status |
|---|---|---|---|
| HackTheBurgh Hackathon | 7 November 2026 Event starts | Edinburgh, in person 7 to 8 November 2026 | Open |
| PayPal AI Hackathon Hackathon | 12 November 2026 Submissions close | Online 1 October to 12 November 2026 | Open |
| DurHack Hackathon | 14 November 2026 Event starts | Durham, in person 14 to 15 November 2026 | Open |
| Meta VR Start Developer Competition 2026 Hackathon | 18 November 2026 Submissions close | Online 24 September to 18 November 2026 | Open |
| HackSheffield11 Hackathon | 28 November 2026 Event starts | Sheffield (The Diamond), in person 28 to 29 November 2026 | Open |
| Kiroween 2026 Hackathon | 4 December 2026 Submissions close 4 December, 2pm PST (10pm UK) | Online 30 October to 4 December 2026 | Open |
| Codegeist 2026 (Atlassian) Hackathon | 22 December 2026 Submissions close 22 December, 12pm PST (8pm UK) | Online 27 October to 22 December 2026 | Open |
| MLH Fellowship Programme | Rolling Rolling: applications are open for upcoming start dates | Remote 12-week remote programme with a stipend | Open |
| Google Summer of Code 2026 Programme | 31 March 2026 Contributor deadline was 31 March, 18:00 UTC. 2027 dates aren't out yet | Online Contributor applications 16 to 31 March 2026 | Expired |
| Multimodal AI Hackathon 2026 Hackathon | 15 October 2026 Submissions closed | Online 29 September to 15 October 2026 | Expired |
| IKU Womxn in STEM Hackathon Hackathon | 17 October 2026 Event starts | London, in person 17 to 18 October 2026 | Expired |
| Build, Ship, Shape: Amazon Developer Hackathon Hackathon | 23 October 2026 Submissions close | Online 31 August to 23 October 2026 | Expired |
| OxHack '26 Hackathon | 24 October 2026 Event starts | Oxford, in person 24 to 25 October 2026 | Expired |
| Build With AI: Basics Hackathon | 26 October 2026 Submissions close | Online 22 September to 26 October 2026 | Expired |
| OpenCV AI Competition 2026 Hackathon | 27 October 2026 Submissions close | Online 26 August to 27 October 2026 | Expired |
| Life After Code (GitLab) Hackathon | 27 October 2026 Submissions close | Online 5 to 27 October 2026 | Expired |
| Nebius x NVIDIA Global AI Hackathon Hackathon | 30 October 2026 Submissions close | Online 26 August to 30 October 2026 | Expired |
| Y Combinator Winter 2027 Programme | 2 November 2026 On-time deadline 2 November, 8pm PT (3 November, 3am UK) | San Francisco (apply online) Batch runs January to March 2027 | Expired |
For in-person events, the deadline shown is the start date. Registration often closes earlier, so check the event page.