Etherpad is an open-source web-based collaborative text editor that allows multiple users to edit documents in real-time. It provides a simple interface where users can see each other's changes instantly, making it ideal for group projects, brainstorming sessions, and collaborative writing. Users can create and share pads easily, and the platform supports features like chat, version control, and document exporting. Etherpad is often used in educational settings, businesses, and by communities to enhance teamwork and communication, as it enables seamless collaboration regardless of location.