Etherpad (EtherPad)Archived copy EtherPad Open Source Release, Google Code is a web-based collaborative real-time editor, allowing authors to simultaneously edit a text document, and see all of the participants edit in real-time, with the ability to display each authors text in their own color. Developed by The Etherpad Foundation
License: Open Source
Etherpad is an open-source collaborative text editor focused on real-time editing and version control, while Hackpad was designed for note-taking and included Markdown support but is no longer actively maintained. Etherpad offers greater flexibility with self-hosting options and rich text formatting.