Zim is described as 'Brings the concept of a wiki to your desktop. Store information, link pages and edit with WYSISYG markup or directly typing some lightweight markup syntax and see it previewed as-you-type. Creating a new page is easy by either clicking on the "Create new note"' and is a leading Note-taking tool in the office & productivity category. There are more than 100 alternatives to Zim for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best Zim alternative is Obsidian, which is free. Other great apps like Zim are Joplin, Notion, Anytype and CherryTree.