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What is GPL? (GPL, GNU and Open Source Explained Simply)
WordPress is synonymous with the General Public License (GPL), a hallmark of free and open-source software. This particular license aligns perfectly with the ethos that drives the WordPress initiative.
Typically, when you install a software program, you encounter an end-user license agreement. These lengthy, intricate documents are crafted to safeguard the software creator’s interests. However, the GPL stands apart in its approach.
Rather than imposing limitations on the usage of WordPress, the GPL aims to grant freedom, ensuring that everyone has the liberty to utilize the platform as they wish.
Originating from Richard Stallman’s vision in 1989 for the GNU operating system, the GPL is now managed by the Free Software Foundation (FSF). Stallman’s concern over increasingly restrictive software licenses led to the creation of the GPL to preserve user freedoms and encourage the communal sharing of software.
Stallman’s GNU General Public License enshrines four essential freedoms for users:
- The liberty to operate the software for any intent.
- The right to inspect and modify the source code to suit any need.
- The ability to distribute copies of the software to others.
- The permission to share your modified versions of the software.
For those interested in the full text of the license, it is available on the GNU website.
Software under the GPL is recognized as free software or open-source software. In this context, ’free’ pertains to the aforementioned freedoms, not the cost.
For additional details, refer to our article on Free Software.
WordPress and the GPL: A Foundation for Community
By embracing the GPL, WordPress fosters a culture of inclusivity and collaboration. Think of the GPL as WordPress’ declaration of principles, laying out the foundational values that the project upholds.
This license empowers anyone to freely download, replicate, employ, examine, and adapt the WordPress codebase, fostering an environment of transparency and cooperation.
Such an approach has proven successful. WordPress thrives as a collaborative open-source project, with contributions from a vast network of skilled individuals who have elevated it to its current esteemed status.
While a dedicated team of developers leads the project, the broader WordPress community is invited to contribute through bug fixes, patches, and feature suggestions. This collective effort is a testament to the project’s open nature.
Beyond these contributors, a global ecosystem of businesses, freelancers, and individuals offer a plethora of WordPress-centric products and services.
Discover more by reading our article on why WordPress is freely available.
Defining GPL Code
GPL code is software disseminated under the GNU General Public License (GPL). This open-source license bestows the right to use, alter, and distribute the software freely. GPL-licensed software means the source code is accessible for use, modification, and distribution, provided it remains under the same licensing conditions.
Expanding WordPress: GPL’s Role in Themes and Plugins
The GPL not only allows for the examination and alteration of WordPress’s core code but also its expansion to suit individual requirements. The sole condition is that any shared modifications must also carry a GPL license.
Termed ‘copyleft,’ this concept cleverly inverts ‘copyright’ to ensure that the freedoms of free software are perpetuated through copyright law, requiring that all derivative versions uphold the same liberties.
Consequently, any derivative work, including WordPress themes and plugins, inherits the GPL license. This ‘copyleft’ principle mandates that these derivatives are also released under the GPL.
Therefore, any theme or plugin obtained from the official WordPress.org directory, as well as most commercially available WordPress themes, are GPL-licensed software.
What is GPL code?
GPL code is software code that is distributed under the GNU General Public License (GPL). The GPL is a free software license that grants users the freedom to run, study, modify, and distribute the code.