pretalx is open-source conference management software for call for papers, speaker and reviewer workflows, scheduling, and publishing event programs.

938 stars255 forkslast commit Actively maintained
Papercall is a web-based call-for-papers and speaker submission platform for events. It collects and organizes talk proposals, manages reviewer assignments, scoring and decision workflows, speaker profiles, scheduling, communications and exports.
pretalx is open-source conference management software for call for papers, speaker and reviewer workflows, scheduling, and publishing event programs.

938 stars255 forkslast commit Actively maintained
OSEM (Open Source Event Manager) is a web app for managing conferences, including call for papers, scheduling, registration, ticketing, and event splash pages.

925 stars502 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: MIT. In exchange you take on hosting, backups and updates yourself.
Browse everything in Community Events & Conference Management.