Zim Desktop Wiki (Zim) is an open source graphical text editor used to maintain a collection of wiki pages.
Each page can contain links to other pages, simple formatting and images. Pages are stored in a folder structure, like in an outliner, and can have attachments. Creating a new page is as easy as linking to a nonexistent page.
All data is stored in plain text files with wiki formatting. Various plugins provide additional functionality, including a task list manager, an equation editor, a tray icon, and support for version control.
Zim aims to bring the concept of a wiki to your desktop. This tool is intended to keep track of TODO lists or to serve as a personal scratch book. But it will also serve you when writing longer and more complicated documents.
Features include:
- Pages saved as plain text files with wiki formatting.
- Hyperlink pages offers a powerful way of organizing content.
- Organize pages hierarchically, allowing for example to group pages by topic, yet also have wiki-style backtracking of links, so users can also have a category system by using backlinks so a page can link to multiple categories.
- Plugins:
- Spell checking.
- an Equation Editor.
- using Calendar pages.
- a Task List dialog.
- a Tray Icon.
Website: zim-wiki.org
Support: Wiki, User Manual, FAQ, Mailing List
Developer: Jaap Karssenberg
License: GNU General Public License v2.0

Zim is written in Python. Learn Python with our recommended free books and free tutorials.
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