ProcessWire software license

ProcessWire is a pure open-source CMS that uses a business friendly Mozilla Public License.

ProcessWire 3.x primarily uses the MPL 2.0 license, but also designates some files as using the MIT license. Both are business friendly and do not require you to maintain the same license for your own original code/files. Regardless of ProcessWire version, 3rd party modules, templates and site profiles may use different licenses at author discretion.

Third party libraries used by ProcessWire specify their own compatible license in file headers or in a LICENSE.* or README.* file present in the same directory. Files native to ProcessWire that to not indicate license in file header or in the directory can be assumed to be MPL 2.0.

  • MPL 2.0 License

    Most files in the ProcessWire core source code use the Mozilla Public License, version 2.0.
  • MIT License

    Some specific components in ProcessWire core use the MIT license (where specified).
  • 3rd party files

    Third party files may in ProcessWire may specify their own license. This page contains more details.
  • CLA

    ProcessWire Contributor License Agreement (CLA), based on the language from the GitHub CLA.

Twitter updates

  • New post: In this week’s post, we’ll take a look a look at the new website and focus on some parts of it and how they were built. Then we’ll dive into the latest version of ProcessWire on the dev branch, version 3.0.124— More
    11 January 2019
  • New ProcessWire main site rebuild ready for preview— More
    4 January 2019
  • Happy Holidays! This latest master version of ProcessWire contains hundreds of new additions, fixes, optimizations and more. This post covers all the highlights— More
    21 December 2018

Latest news

  • ProcessWire Weekly #244
    In the 244th issue of ProcessWire Weekly we'll cover the latest core updates, introduce the new processwire.com site, ask a PHP version related question in the weekly poll, and showcase the site of an open source room bookings app. Read on!
    Weekly.pw / 12 January 2019
  • ProcessWire 3.0.124 and new website launched
    In this week’s post, we’ll take a look a look at the new website and focus on some parts of it and how they were built. Then we’ll dive into the latest version of ProcessWire on the dev branch, version 3.0.124.
    Blog / 11 January 2019
  • Subscribe to weekly ProcessWire news

“…building with ProcessWire was a breeze, I really love all the flexibility the system provides. I can’t imagine using any other CMS in the future.” —Thomas Aull