- BigBlueButton - Supports real-time sharing of audio, video, slides (with whiteboard controls), chat, and the screen. Instructors can engage remote students with polling, emojis, and breakout rooms. (Demo, Source Code)
LGPL-3.0
Java
- Conference Organizing Distribution (COD) - Create conference and event websites built on top of Drupal. (Source Code)
GPL-1.0
PHP
- frab - web-based conference planning and management system. It helps to collect submissions, to manage talks and speakers and to create a schedule. (Source Code)
MIT
Ruby
- Open Conference Systems (OCS) - is a free Web publishing tool that will create a complete Web presence for your scholarly conference. (Demo, Source Code)
GPL-1.0
PHP
- OpenCFP - OpenCFP is a PHP-based conference talk submission system.
MIT
PHP
- OpenConferenceWare - An open source web application for supporting conference-like events. This customizable, general-purpose platform provides proposals, sessions, schedules, tracks, user profiles. (Source Code)
MIT
Ruby
- osem - Event management tailored to free Software conferences. (Demo, Source Code)
MIT
Ruby
- pretalx - Web-based event management, including running a Call for Papers, reviewing submissions, and scheduling talks. Exports and imports for various related tools. (Source Code)
Apache-2.0
Python
Conference Management / Free Software and web applications
This is a list of Free Software network services and web applications which can be hosted locally. Selfhosting is the process of locally hosting and managing applications instead of renting from SaaS providers. ---from github/Kickball/awesome-selfhosted