TreeLine (outliner)

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Initial release 2001
Stable release
2.0.2 / October, 2015
Development status active
Written in Python
Platform Linux, Windows
Available in English, French, German
License GNU General Public License

TreeLine is a free and simple outliner with advanced data element definition and export abilities. It uses a basic tree structure to organize information, and allows the user to define different types of nodes and leaves.

File formats[edit]


TreeLine outlines can be exported as HTML, per-data type user defined formatting. In addition, it supports exporting outlines as an OpenDocument ODT file, various delimited text file formats, and as "plain" XML.


TreeLine can open "plain" XML files, displaying the contents as an outline.

File format[edit]

TreeLine uses a simple XML syntax to store data, with a .trl extension.

Similar programs[edit]

Zim, Wixi, KeepNote, KJots, Tomboy, Notecase, Gnudiary, Basket, GNote, Tiddlywiki,

External links[edit]