# Hackalendar

> Every real in-person hackathon in Europe, checked by a human. Free to read, and always one click to the organiser's own registration page.

Hackalendar is a curated calendar of hackathons in France and the rest of Europe. Every listing is verified by a person before it is published and re-checked weekly, so cancelled and ghost events do not linger. We are the calendar, not the platform: registration always happens on the organiser page we link to.

- Upcoming hackathons published: 5
- Last verification pass: 20 Aug 2026
- Language: English. Times are ISO 8601 with an explicit timezone in the JSON API.
- Cancelled events stay listed with a cancelled marker instead of disappearing.
- Event URLs are permanent: /e/{slug} keeps resolving after the event is over.

## Cities

- [Barcelona](https://hackalendar.com/barcelona): 2 upcoming hackathons
- [London](https://hackalendar.com/london): 1 upcoming hackathon
- [Paris](https://hackalendar.com/paris): 1 upcoming hackathon
- [Amsterdam](https://hackalendar.com/amsterdam): 0 upcoming hackathons
- [Berlin](https://hackalendar.com/berlin): 0 upcoming hackathons
- [Bordeaux](https://hackalendar.com/bordeaux): 0 upcoming hackathons
- [Lille](https://hackalendar.com/lille): 0 upcoming hackathons
- [Lisbon](https://hackalendar.com/lisbon): 0 upcoming hackathons
- [Lyon](https://hackalendar.com/lyon): 0 upcoming hackathons
- [Madrid](https://hackalendar.com/madrid): 0 upcoming hackathons
- [Marseille](https://hackalendar.com/marseille): 0 upcoming hackathons
- [Munich](https://hackalendar.com/munich): 0 upcoming hackathons
- [Nantes](https://hackalendar.com/nantes): 0 upcoming hackathons
- [Toulouse](https://hackalendar.com/toulouse): 0 upcoming hackathons
- [Zurich](https://hackalendar.com/zurich): 0 upcoming hackathons

## Upcoming hackathons

- [{Tech: Europe} x VEED Hackathon | The Summer Lock-In](https://hackalendar.com/e/tech-europe-veed-hackathon-summer-lock-in-london-2026): 22 Aug 2026 · London · In person. Register: https://lu.ma/london-summer-lock-in
- [SYE Hackathon 2026](https://hackalendar.com/e/sye-hackathon-2026-stockholm): 28–30 Aug 2026 · Stockholm · In person. Register: https://sweyoung.com/hackathon
- [{Tech: Europe} x Cala Hackathon | The Summer Lock-In](https://hackalendar.com/e/tech-europe-cala-hackathon-summer-lock-in-barcelona-2026): 29 Aug 2026 · Barcelona · In person. Register: https://lu.ma/barcelona-summer-lock-in
- [OpenAI | AI Privacy Hackathon - Paris](https://hackalendar.com/e/openai-ai-privacy-hackathon-paris-2026): 3 Sept 2026 · Paris · In person. Register: https://events.openai.com/aiprivacyhackathonparis/12646822
- [AISB Hackathon 2026](https://hackalendar.com/e/aisb-hackathon-2026-barcelona): 19–20 Sept 2026 · Barcelona · In person. Register: https://lu.ma/3gswve8n

## API and feeds

- [JSON API](https://hackalendar.com/api/events): read-only, no auth, open CORS. Query params: city, theme, mode, from, to, limit (max 200). Response: {"data": [...], "meta": {"total", "generatedAt"}}.
- [RSS](https://hackalendar.com/feed.xml): upcoming events with full details per item. Per city: https://hackalendar.com/{city}/feed.xml
- [Calendar](https://hackalendar.com/calendar.ics): iCalendar subscription. Per city: https://hackalendar.com/{city}/calendar.ics · Per event: https://hackalendar.com/e/{slug}/calendar.ics
- [Sitemap](https://hackalendar.com/sitemap.xml): every page with a real lastmod.
- Every event page carries schema.org Event JSON-LD; city pages carry ItemList.

## Reuse

Quoting, citing and linking are welcome, including by AI assistants. Please link to the event page or the organiser page so readers can register at the source. Corrections: hello@hackalendar.com