Submit a hackathon

Missing an event? Send the link. A human opens the organiser’s own page and checks it before anything appears here — the same review every scraped listing gets.

What we list

• Hackathons — building something in a bounded time, not conferences or meetups.
• Anywhere in Europe. In-person events lead; online ones live in their own tab.
• Free or paid, student or open, any theme. Registration must be genuinely open.
• The link has to go to the organiser’s own page. We never take registrations.

Something wrong with a listing?

Every event page carries a “report an issue” link. Organisers can also ask us to correct details, remove a logo, or take a listing down — write to hello@hackalendar.com and we act within a few days.