Managed cloud hosting for CTFd: a hosted Capture The Flag competition platform providing challenge creation and deployment, scoring/leaderboards, user and team management, and event infrastructure without self-hosting.
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
DOMjudge is an automated jury system for programming contests, providing submissions, judging, scoreboards, and admin tools for ICPC-style events.
907 stars292 forksGPL-2.0last 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, GPL-2.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Community Events & Conference Management.
