MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis.

MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis.

Write your content in the widely used and simple Markdown format, using the built-in visual editor. Unlike other wiki software that save content in a database with a difficult to extract format, Wiki.js saves all your content directly into Markdown (.

Streamline teamwork with real-time collaboration, drag-and-drop content organization, and visual simplicity across notes, tasks, wikis, and databases.




Lessons Learned Server is a light-weight knowledge-base web application with powerful editing capabilities. Based on PHP and MySQL. Available as a downloadable server application or via cloud hosting.




BookStack is a free and open source knowledge management platform built on PHP. The system has been built around simplicity to ensure that adding information to it is not a chore. The content structure is built on the metaphors of Books, Chapters & Pages.




Microsoft OneNote, part of the Microsoft 365 Copilot, is a digital notebook application that gives people one place to gather notes and information. It also offers shared notebooks, syncing between multiple computers and devices via Windows...




Cross-platform cloud note-taking with plain text, syncing, tagging, real-time collaboration, markdown, version history, and open-source clients.




OpenSource note-taking & archiving alternative to Evernote, Microsoft OneNote & Google Keep.
