Zim

Zim provides a graphical desktop editor for creating and navigating a collection of wiki‑style pages stored in a plain‑text folder hierarchy. Each page supports simple formatting, embedded images, and links to other pages, and new pages can be generated simply by linking to a non‑existent title. The data format is plain wiki text, allowing easy editing with external tools and compatibility with version‑control systems.

The application targets users who need a personal knowledge base, journal, meeting or lecture notes, task lists, or draft documents such as blogs and emails. Its autosave feature lets users move between linked pages without losing work, and plugins extend functionality with task management, equation editing, tray icons, and version‑control integration.

Zim is self‑hostable, open‑source under GPL‑2.0, and distributed without subscription or tiered pricing. It runs on Linux, Windows, and macOS, requiring GTK 3, Python 3 and related bindings, and can be installed from package repositories or from source. The software is marked stable and mature.