BookStack
Description: BookStack is an open source knowledge management platform to help build and organize wikis for internal or public use. It allows you to collaboratively write and structure documents to organize knowledge, notes or documentation.
Type: software
Pricing: Free
Chatango
Description: Chatango is a free chat software and service that allows users to have real-time conversations through chat rooms. It offers features like customizable profiles, private messaging, media sharing, and mobile compatibility.
Type: software