Software that allows anyone with the resources to host an open-source encyclopedia or other database that can be edited by anyone or by select users of your choice. Wikipedia is by far the most well known example of this.
Wikipedia is a free, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Wikipedia has 17 million articles (3.
Zim brings the concept of a wiki to your desktop.
Tomboy is a desktop note-taking application for Linux, Unix, Windows, and Mac OS X.
CintaNotes is an ultra-ergonomic, productivity-boosting notetaking app for Windows. It will help you collect, organize, and find any information.
TiddlyWiki is a highly customizable notewiki for capturing, organising and sharing complex information.
DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies.
wikidPad is a Wiki-like notebook for storing your thoughts, ideas, todo lists, contacts, or anything else you can think of to write down.
Zoho is an all-in-one online office suite. Zoho geares itself towards businesses, increasing your productivity and offering easy, real-time collaboration.
Trac is an enhanced wiki and issue tracking system for software development projects. Trac uses a minimalistic approach to web-based software project management.
MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
With so many tools, it's hard to keep everyone on the same page. Notion is a new tool that unifies them all.
The easiest, fastest, and most painless way of setting up a self-hosted Git service.
Nuclino is the easiest way to organize and share knowledge in teams. Create real-time collaborative documents and connect them instantly like a wiki.
Slite is where modern teams write & collaborate. It's their company wiki, meeting notes and docs in one simple place, across devices. Key features include
A note taking application for KDE. Lots of features. This multi-purpose note-taking application helps you to: * Easily take all sort of notes
No new releases since March 2012, but last version, 0.7.8, is still working and can be downloaded from the official website.
KeepNote: note-taking and organization. KeepNote is a note taking application that works on Windows, Linux, and MacOS X. With KeepNote, you can store your class notes, TODO
Wikibooks is a Wikimedia community for creating a free library of educational textbooks that anyone can edit.
OpenProject is an open-source project management software with a wide set of features and plugins. It supports project timelines / Gantt charts, issue tracking, wiki, document management, time and cost reporting, code management, Scrum and much more.
FANDOM is a community-based service that allows anyone to create a wiki on virtually any subject. Discover, share and add your knowledge! Wikia is financed by advertisment!
Everipedia removed some of the more annoying aspects of Wikipedia and created a site that is much easier to use. Notability requirements are eliminated and citations / editing are WYSIWYG. There is also a commenting page for each link or file added.
Kiwix enables you to have the whole Wikipedia at hand wherever you go! You don't need Internet, everything is stored on your computer, USB flash drive or DVD!.
An open source knowledge management application that's focused on ease of use.
Wiktionary is a multilingual, web-based project to create a free content dictionary, available in 158 languages.
Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school...
OutWiker is designed to store notes in a tree. Such programs are called "outliner", personal wiki, or tree-like editors.