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mason

Mason License

Mason Commercial License Agreement

Version 1.0

Copyright © 2026 Bison Digital. All rights reserved.

This Commercial License Agreement ("License") governs the use of Mason ("Software"), an ExpressionEngine add-on developed and distributed by Bison Digital.

1. License Grant

Subject to the terms of this License, Bison Digital grants you a non-exclusive, non-transferable license to install and use Mason on one production ExpressionEngine website per purchased license.

A separate Mason license is required for each additional production website.

The license may be purchased and used by a website owner, organization, developer, or agency on behalf of a client.

2. Per-Site Licensing

Each Mason license covers one production website.

For the purposes of this License, a "Site" means a single ExpressionEngine installation or website intended to operate as one production web property.

A licensed Site may also have associated copies used solely for:

  • Local development
  • Development servers
  • Staging environments
  • Testing environments
  • Continuous integration or deployment
  • Backup and disaster recovery

These associated environments do not require additional licenses provided they support the same licensed production Site.

A separate license is required when Mason is used on another production website, including another client website or independently operated web property.

3. Purchase and Pricing

Mason is commercial software and is currently offered for $20 USD per Site.

Purchase of Mason grants you a license to use the version of the Software obtained at the time of purchase, subject to the terms of this License.

Purchase of Mason does not transfer ownership of the Software or its source code.

Bison Digital may change the price, licensing model, features, support terms, or availability of future releases.

4. Future Versions

Minor updates within the same major version may be made available at Bison Digital's discretion.

Future major releases, including Mason 2.x and later, may require the purchase of an upgrade, new license, subscription, or other commercial arrangement.

Purchase of Mason 1.x does not guarantee access to future major versions, premium features, services, updates, or support.

A version of Mason lawfully obtained under this License may continue to be used on its licensed Site under the terms that applied when it was purchased.

5. Permitted Use

You may:

  • Install and use Mason on one production Site for each license purchased.
  • Install Mason on development, staging, testing, and local environments associated with that Site.
  • Purchase and install Mason on behalf of a client.
  • Use Mason as part of commercial website development projects.
  • Modify Mason as reasonably necessary to integrate it into the licensed Site.
  • Make reasonable backup copies associated with the licensed Site.
  • Transfer management of the licensed Site to the client for whom it was developed.

6. Restrictions

You may not:

  • Use a single Mason license on multiple production websites.
  • Reuse a client Site license for another client or unrelated production website.
  • Sell, sublicense, publish, distribute, or redistribute Mason as a standalone product.
  • Repackage Mason and offer it as your own add-on, fieldtype, editor, product, library, or development tool.
  • Make Mason available for download or distribution to third parties except as necessary to develop or deliver the licensed Site.
  • Remove or obscure copyright, licensing, attribution, or proprietary notices contained within the Software.
  • Use Mason or substantial portions of its original source code to create and distribute a competing ExpressionEngine editor or add-on.
  • Claim ownership or authorship of Mason or any portion of the Software owned by Bison Digital.

7. Client Projects

Developers and agencies may purchase Mason for use on client projects.

Each client production Site requires its own Mason license.

Development, staging, testing, and local copies associated with that client Site are covered by the same license.

When a completed website is delivered to a client, the client may continue to use Mason as part of that licensed Site.

The client does not receive the right to use the same license on another production Site or to separately redistribute, resell, sublicense, or repackage Mason.

8. Site Transfers

A Mason license is associated with a Site rather than a particular developer or agency.

If ownership or management of the licensed Site changes, the Mason license may remain with that Site.

A developer or agency may not retain and reuse that license for another production website after transferring the licensed Site to a client or another party.

9. Ownership

Mason is licensed, not sold.

Bison Digital retains all right, title, and interest in Mason, including its original source code, ExpressionEngine integration, interface, configuration system, documentation, branding, and other original materials, except for third-party components identified separately.

No ownership rights are transferred under this License.

10. Third-Party Software

Mason is built using and may incorporate third-party open-source software, libraries, assets, or other components, including Tiptap and its dependencies.

Third-party components remain subject to their respective licenses and copyright notices.

Open-source portions of Tiptap used by Mason remain subject to their applicable open-source licenses. Rights granted under those licenses remain unaffected by this License.

If Mason incorporates optional commercial or proprietary third-party components, those components remain subject to the licenses and terms provided by their respective owners.

Nothing in this License is intended to restrict rights granted by, or override obligations imposed by, a third-party license.

11. Tiptap

Mason uses Tiptap as part of its rich-text editing functionality.

Tiptap is an independent project and is not owned by Bison Digital.

This License applies to Bison Digital's original Mason software, including its ExpressionEngine integration, configuration, interface, custom functionality, documentation, and related proprietary work.

This License does not replace or supersede the license governing Tiptap or any other third-party component.

12. Updates and Support

Unless separately stated by Bison Digital, purchase of Mason does not guarantee technical support, maintenance, compatibility updates, new features, or future major releases.

Bison Digital may provide updates and support at its discretion and may discontinue support or development of any version of Mason.

13. Termination

Your rights under this License terminate automatically if you materially violate its terms.

Upon termination, you must stop using Mason on any unlicensed Site and cease unauthorized distribution of the Software.

Bison Digital may provide an opportunity to remedy a violation before termination where appropriate.

14. Disclaimer of Warranty

THE SOFTWARE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT, TO THE MAXIMUM EXTENT PERMITTED BY LAW.

15. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, BISON DIGITAL SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOSS OF DATA, REVENUE, PROFITS, OR BUSINESS ARISING FROM THE USE OF OR INABILITY TO USE MASON.

16. Changes to This License

Bison Digital may publish different licensing or pricing terms for future versions of Mason.

Changes applying to a future release do not retroactively alter the license granted for a version you previously purchased unless you expressly agree to the new terms.

17. Contact

Questions regarding commercial licensing, redistribution, OEM use, multi-site licensing, or other uses not permitted by this License may be directed to Bison Digital.

Mason is a product of Bison Digital.