Challonge is an online tournament bracket and event management platform for creating, managing, and sharing single/double-elimination, round-robin, and custom tournaments. Features include registration, seeding, match reporting, embeds, and API integration.
Open-source, self-hosted tournament system for creating and managing Swiss, single‑elimination and round‑robin tournaments with scheduling, dashboards, team/club management and CSV import.
1.7k stars178 forksAGPL-3.0last commit Actively maintained
Dribdat is a Flask-based, open-source platform for organising hackathons, code sprints and challenge-driven events with project curation, integrations and progress tracking.
89 stars31 forksMITlast commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 2 of 2 shipped a commit in the last six months. Licences in this list: AGPL-3.0, MIT. In exchange you take on hosting, backups and updates yourself.
Browse everything in Community Events & Conference Management.
