Some would call TreeLine a PIM (Personal Information Manager), others would call it an Outliner, but the truth is that it’s just an open source graphical software implemented in Python/Qt for storing almost any kind of information, including HTML, plain text, numbers, times, dates, URLs and booleans.
At a glance, the application features a tree structure that helps you keep your things organized, provides multiple views (left-hand, left flat, right-hand and output), it exports data to HTML, and it can export or import ODF text documents as outlines.
Features, lots of features
It is no doubt that TreeLine is a full featured application, as it includes a wide range of functionality, among which we can mention support for several fields for each node, forming a minimal database, support for various node types that have different sets of fields, as well as support for defining the node format, including output lines, tree-view icon and fields for each node type.
The navigation functionality of the software includes a find command that quickly searches through all node data, a fast incremental search command that can be used to find a matching node title, as well as next and previous selection commands, which lets you to quickly move between different parts of the tree.
TreeLine’s formatting functionality allows the user to copy information from a different TreeLine file, and the app’s dialog for configuring data types has several tabs that allow you to effortlessly set all field, output and type parameters. Redo and Undo commands are also implemented.
The software is also capable of converting files in batch mode via the built-in command-line interface, imports and exports generic XML files, transforming the application is a basic XML editor, imports and exports bookmarks in the XBEL or Mozilla file formats, and lets users to filter nodes.
Under the hood and supported OSes
As mentioned, TreeLine is written entirely in the Python programming language and uses the Qt GUI toolkit for its graphical user interface. It is supported on all GNU/Linux distributions, as well as on the Microsoft Windows operating systems, being compatible with both 64-bit and 32-bit computers.