1. Confluence is content collaboration software that changes how modern teams work

  2. Collaborate with your team and share the data you care about in one place

  3. MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.

  4. Nuclino is a unified real-time workspace for teams that brings all your notes, tasks, and docs together in one place.

  5. A powerful Open Source collaborative platform enhancing collaboration and communication.

  6. An open source knowledge management application that's focused on ease of use.

  7. An open source, modern and powerful wiki app built on Node.js, Git, and Markdown.

  8. Laserfiche offers powerful document management software solutions that are easy to implement and easy to use.

  9. Zim is a graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images.