WordPress
Open-source PHP content management system for websites and blogs, with a block editor, themes and plugins.
wordpress.orgrepositorydocsplugins
WordPress is a PHP content management system in which editors write pages and posts in a block editor, while themes and plugins extend the site. Block themes build templates from HTML files with block markup. The project was first released in 2003 as a fork of b2/cafelog. Content lives in the database, and a REST API gives applications access to it. Multisite is built in and is switched on in wp-config.php, so one installation can host a network of sites. The WordPress open source community maintains the project. Development happens in Subversion, and the GitHub repositories are mirrors.
Worth knowing
Only the latest version is officially supported. The Security Team backports fixes to older branches as a courtesy.
Identity
Rendering and deploy
- Runs as
- Per request6
- Rendering
- On a server9
- Install with
- zip or tar.gz download, host one-click installers4
Releases
Adoption
Sources
- 2026-10-18: name, First release, Maintainer, Maintained by, Categories, Written in, License, License model
wordpress.org/about/ - 2026-10-18: links
api.github.com/repos/WordPress/WordPress - 2026-10-18: links, License, GitHub stars
api.github.com/repos/WordPress/wordpress-develop - 2026-10-18: links, Install with
developer.wordpress.org/advanced-administration/before-install/howto-install/ - 2026-10-18: wikidata
www.wikidata.org/wiki/Q13166 - 2026-10-18: Runtime, Content storage, Databases, Runs as
wordpress.org/about/requirements/ - 2026-10-18: Minimum runtime, Current major version
api.wordpress.org/core/version-check/1.7/ - 2026-10-18: Admin interface, Content API
developer.wordpress.org/rest-api/ - 2026-10-18: Templating, Rendering
developer.wordpress.org/themes/templates/introduction-to-templates/ - 2026-10-18: Last release
endoflife.date/api/wordpress.json - 2026-10-18: links, Plugins
api.wordpress.org/plugins/info/1.2/?action=query_plugins&request[per_page]=1 - 2026-10-25: Sites using it (HTTP Archive)
cdn.httparchive.org/v1/technologies