ProcessWire software license

ProcessWire is a pure open-source CMS licensed under the Mozilla Public License 2.0. When indicated in the file header, the MIT license is also used by ProcessWire.

For your own original code/files, you are not required to maintain the same license. Third party modules, your own templates, and your own site profiles may use different licenses at your discretion, so long as they are not incompatible with those used by ProcessWire. 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 do not indicate license in file header or in the directory can be assumed to be MPL 2.0 (Mozilla Public License v2.0).

  • 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

  • ProcessWire 3.0.174 core updates: improvements to the new path/URL hooks and more— More
    12 March 2021
  • ProcessWire 3.0.173 adds several new requested features and this post focuses on one of my favorites: the ability to hook into and handle ProcessWire URLs, independent of pages— More
    5 March 2021
  • This week ProcessWire gained powerful new tools for finding pages and controlling how they are loaded. If you like to maximize performance and efficiency, you’ll like what 3.0.172 brings— More
    5 February 2021

Latest news

  • ProcessWire Weekly #356
    In the 356th issue of ProcessWire Weekly we'll cover the latest core updates (ProcessWire 3.0.173), introduce new third party modules RockCalculator and RockIframe, and take a closer look at a brand new site of the week. Read on!
    Weekly.pw / 6 March 2021
  • ProcessWire 3.0.173 core updates: New URL hooks
    ProcessWire 3.0.173 adds several new requested features and this post focuses on one of my favorites: the ability to hook into and handle ProcessWire URLs, independent of pages.
    Blog / 5 March 2021
  • Subscribe to weekly ProcessWire news

“We were really happy to build our new portfolio website on ProcessWire! We wanted something that gave us plenty of control on the back-end, without any bloat on the front end - just a nice, easy to access API for all our content that left us free to design and build however we liked.” —Castus, web design agency in Sheffield, UK