Leo’s Home Page

Leo is...
  • An outline-oriented browser and project manager that organizes
    programs, web sites, URL's, pictures, movies or any other kind of data.
    You can organize your data in as many ways as you like within a single outline.
  • A programmer's editor that fully integrates outline structure with programming.
  • Fully scriptable using Python. Leo's core is 100% pure Python.
  • Portable. Leo runs on Windows, Linux and MacOS X.
    Leo requires either the Tkinter or PyQt widget set.
    Leo's outline files are XML format.
  • Open Software, distributed under the MIT License.
  • Leo stands for Leonine Editor with Outlines.
  • Leo has an active community of helpful users and developers.
    Please use the leo-editor group to ask questions and make suggestions.

    Leo's author is Edward K. Ream