Org-mode

Org-mode - Description
Org-mode is a multi-purpose plain-text system which is displayed and manipulated via an editing mode of the Emacs text editor.

Outside of Emacs, Org-mode files can be viewed as human-readable plain text.

It can be used for: structured note-taking, TO DO lists, project planning, authoring of "executable documents" that combine markup language (for example, LaTeX) with embedded executable code.

Identifiers

 * File extension: .ORG