WordPress.org

Akismet checks your comments against the Akismet Web service to see if they look like spam or not.

Bởi Matt Mullenweg, Ryan Boren, Andy Skelton, Michael Adams (mdawaffe), và others.

A very fast caching engine for WordPress that produces static html files.

Bởi Donncha O Caoimh, Automattic, và Brandon Kraft.

bbPress is forum software, made the WordPress way.

Bởi Matt Mullenweg, John James Jacoby, Jennifer M. Dodd, và Stephen Edgar.

Increase your traffic, view your stats, speed up your site, and protect yourself from hackers with Jetpack.

Bởi Automattic, Adam Heckler, Andrew Duthie, Alex Kirk, allendav, alternatekev, và others.

BuddyPress helps you build any type of community website using WordPress, with member profiles, activity streams, user groups, messaging, and more.

Bởi John James Jacoby, Paul Gibbs, Boone Gorges, r-a-y, imath, @mercime, và others.

A simple and easy way to test your theme for all the latest WordPress standards and practices. A great theme development tool!

Bởi Samuel Wood (Otto) và Simon Prosser.