Are WordPress Themes Open Source?

In a word, yes. WordPress themes are open source, meaning that the code is available to view and modify.

This transparency is a key part of the WordPress platform, and it has helped make WordPress one of the most popular content management systems (CMS) in the world.

However, while the code is always available, not all themes are released under the GPLv3 license. This means that some themes may not be suitable for use in a commercial setting.

If you’re looking for a theme that’s licensed under the GPLv3, be sure to check the theme’s license information.

In the end, whether or not a theme is released under the GPLv3 is up to the individual theme author. If the theme you’re looking to use is not licensed under the GPLv3, that’s okay.

You can still use it, as long as you abide by the terms of the license.