The Daily Shaarli

Zulip is a powerful, open source group chat application that combines the immediacy of real-time chat with the productivity benefits of threaded conversations.

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

It is a great solution for communities and companies wanting to privately host their own chat service or for developers looking forward to build and evolve their own chat platforms.

PostgreSQL Database Modeler is an open source data modeling tool designed for PostgreSQL. No more DDL commands written by hand let pgModeler do the job for you! This software reunites the concepts of entity-relationship diagrams and the features that PostgreSQL implements as extensions of SQL standards.

Jitsi is a set of open-source projects that allows you to easily build and deploy secure videoconferencing solutions. At the heart of Jitsi are Jitsi Videobridge and Jitsi Meet, which let you have conferences on the internet, while other projects in the community enable other features such as audio, dial-in, recording, and simulcasting.