This is a list of notable wiki software applications. For a comparative table of such software, see Comparison of wiki software. For a list of wikis, or websites using wiki software, see List of wikis.
Standard wiki programs, by programming language
- Lively Wiki is based on Lively Kernel and combines features of wikis and development environments. Users can create and edit application behavior and other content.
- Wiki.js is an open-source, Node.js-based wiki application using git as the back end storage mechanism and automatically syncs with any git repository. It provides a visual Markdown editor with assets management, authentication system and a built-in search engine.
- XWiki is an open-source Java-based wiki engine with a complete wiki feature set (version control, attachments, etc.) and a database engine and programming language which allows database driven applications to be created using the wiki interface.
- Zoho Wiki is an easy-to-use knowledge management tool for teams.
- WikiWikiWeb, the first wiki and its associated software
- Foswiki is a structured wiki, which enables users to create "wiki applications".
- ikiwiki, a "wiki compiler" - can use Subversion or git as the back end storage mechanism.
- TWiki is a structured wiki, typically used to run a project development space, a document management system, a knowledge base, or any other groupware tool. Also available as a VMware appliance.
- UseModWiki (created by Clifford Adams in 2000) is a clone of AtisWiki.
- DokuWiki is aimed at the documentation needs of a small company. It uses plain text files and has a simple but powerful syntax which ensures the datafiles remain readable outside the wiki.
- MediaWiki is used for projects run by the Wikimedia Foundation, which operates Wikipedia. It is also publicly available for use in other wikis, and has widespread popularity among smaller, non-Wikimedia wikis.
- Semantic MediaWiki lets you store and query data within the wiki's pages like a database. It is also designed to ease and combine collaborative authoring within a wiki'Italic text'Italic text' with semantic technology.
- BlueSpice MediaWiki extends MediaWiki in usability, quality management, process support, administration, editing and security.
- PhpWiki is a WikiWikiWeb clone in PHP.
- PmWiki is a PHP-based wiki. Features include: GPL-licensed, easy installation/customization, designed for collaborative authoring and maintenance of web sites, and support for internationalization. Does not require a database.
- UserPress is a PHP/WordPress-based wiki platform. Features include: easy setup, tight integration with WordPress, wiki page previews (via modal window), edit tracking, and page tree re-ordering widget.
- MindTouch is an open-source application that began as a fork of MediaWiki; it has a C# back-end and a PHP front-end.
- Wagn is a Ruby on Rails application that can be used as a simple wiki, a database, a content management system, or a development platform.
- Gollum is a wiki using git as the back end storage mechanism, and written mostly in Ruby. It is the wiki system used by the GitHub web hosting system.
Personal wiki software
- ConnectedText is a commercial Windows-based personal wiki system with features including full text searches, visual link tree, customizable interface, image and file control, CSS-based page display, exports to HTML and HTML Help, and plug-ins.
- Journler is a free, open-source personal information manager with personal wiki features for OS X.
- WhizFolders is a commercial Windows-based personal wiki software with rich text wiki items that support inserting links to other wiki items or external files.
- WikidPad is a free, open-source personal use (single-machine) wiki with native support of international characters (Unicode).
- Zim is a free, open-source standalone wiki based on Python and GTK with a WYSIWYG editor.
- XWiki includes the standard wiki functionality as well as WYSIWYG editing, OpenDocument based document import/export, semantic annotations and tagging, and advanced permissions management. 
- IBM Connections is an Enterprise Social Software made by IBM which combines Wikis, Blogs, Files, Forums, Microblogging, Social Analytics, and Document Management.
- Jive (formerly known as Clearspace, Jive SBS and Jive Engage) is a commercial J2EE application, made by Jive Software, which combines wiki, blog and document management functionality. Jive uses WYSIWYG editing, and includes workflow management.
- Liferay is an open source enterprise portal project with a built-in web content management and web application framework. Core portlets offer a great number of functionalities, including Wiki (both Creole and MediaWiki syntax).
- ConcourseConnect is a freely available J2EE application made by Concursive which brings together Corporate Social Networking, Online Community, Business directory, and Customer relationship management capabilities. Features include wiki, blog, document management, ratings, reviews, online classified advertising, and project management modules. The wiki allows both wiki markup and WYSIWYG editing.
- Confluence is a commercial J2EE application which combines wiki and some blog functionality. Its features include PDF page export and page refactoring, and it can be run on any application server using any RDBMS backend.
- Mindquarry creates a WYSIWYG wiki for each team. It is built using Apache Cocoon and thus based on Java (Mozilla Public License)
- Traction TeamPage is a commercial enterprise wiki also incorporating blog, project management, document management, discussion and tagging capabilities. The wiki has a draft moderation capability allowing administrators to indicate who can read published vs. draft versions, and who can publish vs. author and edit. The dynamic view architecture allows for easy organization of pages and to collect any set of pages for view, email or export. It is based on the principles of Douglas Engelbart's On-Line System (NLS) which aggregates multiple blog/wiki spaces using a sophisticated permission and inline comment model.
- Socialtext is an enterprise wiki and weblog engine partially derived from open-source Kwiki. Socialtext is available as a hosted service, or a dedicated hardware appliance.
Project management software with wiki functionality