Penpot : Penpot is the first open-source design tool for design and code collaboration. Designers can create stunning designs, interactive prototypes, design s...
Rocket.Chat : Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
It is a great solution for communities and companies ...
Grist : Grist is a modern relational spreadsheet. It combines the flexibility of a spreadsheet with the robustness of a database.
extramuros : This is software for collaborative live coding. On one machine, you run an extramuros "server". Then, from as many machines as you like, you use a web...
Luckysheet is an online spreadsheet like excel that is powerful, simple to configure, and completely open source.