Zulip : Powerful slack-like open source group chat
Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...
Open Streaming Platform : Open Streaming Platform (OSP) is an open-source, RTMP streamer software front-end for Arut's Nginx-RTMP Module. OSP was designed as a self-hosted alte...
Tiny Tiny RSS : Tiny Tiny RSS is a free and open source web-based news feed (RSS/Atom) reader and aggregator.
