WordPress Licensing

WordPress is released under an open-source software license known as the GNU General Public License (GPL). The GPL is a widely used free software license that grants certain freedoms and rights to users and developers. Here are the key points regarding WordPress licensing:

1. GNU General Public License (GPL):

• WordPress is licensed under the GPL, specifically version 2 (or later). This license is designed to promote the principles of free software and open source development.
• The GPL ensures that WordPress remains open source, and anyone can view, modify, distribute, and use the source code.

2. Key GPL Principles:

• Freedom to run the program for any purpose.
• Freedom to study and modify the program’s source code.
• Freedom to distribute copies of the program.
• Freedom to distribute modified versions of the program.

3. Implications of GPL for WordPress:

• Users are free to download, install, and use WordPress for any purpose, including commercial projects, without licensing fees.
• Users can modify the WordPress core code, develop themes, plugins, and distribute them under the GPL.
• Themes and plugins distributed through the official WordPress repository must also comply with the GPL or a compatible license.

4. Themes and Plugins:

• Themes and plugins developed for WordPress are considered derivative works when they interact with the WordPress core. As a result, they must adhere to the GPL or a compatible license.
• Developers are encouraged to release their themes and plugins under the GPL to align with the WordPress philosophy and to contribute to the open-source community.

5. Commercial Themes and Plugins:

• While WordPress and its extensions are free, some developers sell premium themes and plugins. These commercial products are subject to the GPL if they are distributed as part of the WordPress ecosystem.
• Commercial themes and plugins often include support and updates as part of the purchase.

6. Compliance and Enforcement:

• The WordPress Foundation, which oversees WordPress, has a strong commitment to GPL compliance within the WordPress ecosystem.
• Theme and plugin developers who violate GPL licensing may face consequences, including removal from the official WordPress repository.

7. Contributions:

• Contributions to the WordPress project, including code contributions, documentation, and translations, are typically made under the GPL or a compatible license.

8. Dual Licensing:

• Some developers choose to dual-license their WordPress products, offering GPL versions for open-source use and proprietary versions with additional features and support for a fee.

In summary, WordPress is licensed under the GPL, which promotes the principles of open source and free software. This licensing model allows for widespread use, modification, and distribution of WordPress and its extensions while maintaining the spirit of open source collaboration and freedom. Developers and users within the WordPress ecosystem are encouraged to respect and adhere to the GPL and contribute to the growth of the open-source community.