DokuWiki

DokuWiki is a free and open-source wiki software designed for easy creation and maintenance of documentation. It stores content as plain text files using its own markup language, rather than in a database, which simplifies backup and portability. Pages are organized in namespaces and saved under the data directory on the server, typically data/pages and data/media for attachments.

DokuWiki is written in PHP and runs on most standard web servers with PHP support, making it usable on Linux, Windows, and macOS environments. It emphasizes simplicity of installation and maintenance: a basic setup can be achieved by uploading files and configuring a web server, with no separate database required.

Key features include a built-in access control list (ACL) that allows per-page and per-namespace permissions, revision history with diffs, and lightweight user management. It ships with a default template and supports a large ecosystem of plugins and templates to extend functionality, such as WYSIWYG editors, PDF export, diagram rendering, and enhanced search. Its flexible namespace structure helps organize content in a scalable way.

DokuWiki uses its own syntax for markup and links, designed to remain readable when viewed as plain text. The software is well-suited for knowledge bases, software documentation, and internal wikis where a database backend is undesirable or unnecessary. It is licensed under the GNU General Public License.

Since its early releases, DokuWiki has built a dedicated community around documentation projects and intranets and remains popular for its portability, ease of use, and active plugin ecosystem.