About
livediagram is a collaborative diagram and mindmap editor that lives in the browser. It is built around one stubborn principle: the canvas always works without signing in.
A visitor can open a link and build a real diagram before being asked to create an account. There is no sign-in wall in front of the editor, ever, because the easiest way to get a team drawing together is to remove every step between them and the canvas.
Did we mention its completely free and open source?