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MUI X End User License Agreement (commercial plans)


This EULA constitutes a legally binding agreement between you or the business and/or entity which you represent (Licensee) and MUI (Licensor) for all MUI products included in this distribution/installation and associated documentation (the Software).

By purchasing, installing, copying, or otherwise using the SOFTWARE, you acknowledge that you have read this agreement and you agree to be bound by its terms and conditions. If you are representing a business and/or entity, you acknowledge that you have the legal authority to bind the business and/or entity you are representing to all the terms and conditions of this agreement.

If you do not agree to any of the terms and conditions of this agreement or if you do not have the legal authority to bind the business and/or entity you are representing to any of the terms and conditions of this agreement, DO NOT INSTALL, COPY, USE, EVALUATE, OR REPLICATE IN ANY MANNER, ANY PART, FILE OR PORTION OF THE SOFTWARE DEVELOPMENT PRODUCT(S).


  • "MUI" means Material-UI SAS, a legal entity located at 128 Rue La Boétie, 75008 Paris, France.
  • "Site" means all websites operated by MUI, including but not limited to https://mui.com/.
  • "Licensee" means the business and/or entity that you represent.
  • "Licensor" means the creator and owner of the SOFTWARE: MUI.
  • "Effective Date" means the date on which the agreement is made effective. This is the date of the purchase.
  • "Software" means the copyrighted materials owned by the Licensor, subject to the terms of this agreement.
  • "Licensed Developers" means the Licensee's (and any of its affiliates') employees, workers, and contractors who are authorized by the Licensee to develop software products that include the Software.
  • "License Term" means the duration for which the license is valid, starting from the Effective Date, and ending after a minimum 12 months.
  • A "production" environment is where the end-user can see, experience, and interact with the product.


License grant

In exchange for the fee owed under https://mui.com/pricing/, or as otherwise agreed, the Licensor hereby grants Licensee and its subsidiaries and affiliate(s) (collectively "Affiliates") a license to install and use the Software.

The license granted to the Licensee and its Affiliates allows a worldwide, non-exclusive, non-transferable, sublicensable (subject to restrictions below), royalty-free license, commencing on the Effective Date and concluding at the end of the License Term.

Perpetual in production

The Licensee is allowed to perpetually use in a production environment any versions of the Software released before the end of the License Term.

Non-perpetual outside of production

The Licensee doesn't need to renew its license if no developers worked with the API and/or source code of the Software in any capacity for at least one month. Otherwise, all the developers contributing changes to the front-end code of a project that includes the Software need a active license.


Licensee may sublicense the Software as a part of a larger work containing more than Software under a limited license.

Licensee shall ensure (and shall procure that its Affiliates shall ensure) that the terms of any sub-license are in writing and are substantially the same and as restrictive as the terms of this agreement (except that the sub-licensee shall not have the right to sublicense its rights).

At no time may Licensee include any portion of the Software in any project that directly or indirectly competes with it.

For the avoidance of doubt, Licensee may not use the Software, or any portions thereof, for an project that can be described as a development toolkit or library, an application builder, a website builder, a user interface designer, or any project that is intended for use by developers or designers, or has a similar purpose or functionality, except with the express written agreement of Licensor.


The Licensee shall not sell, rent, lease, distribute, assign, transfer or encumber rights to the Software.

License key

To help Licensee to stay compliant with the terms of this agreement, the Software may require the installation of a license key. If a license key is required:

  • The Licensor will make available to the Licensee a valid license key.
  • The Software may raise warnings, based on the license key, when it detects that the current use of the Software by Licensee is not consistent with this agreement, for example, when using a version of the Software released after the license of Licensee has expired.

Please note that the license key does not cover every scenario, so possession of a valid license key does not by itself confer the right to use the Software.

Required quantity of licenses

The number of developers licensed must correspond to the maximum number of concurrent developers (in any continuous 24 hour period) contributing changes to the front-end code of the projects that use the Software.

For example, a developer using the Software indirectly through a wrapper library needs to be licensed, a developer working on the front-end code of a project that includes the Software but who doesn't use the Software directly needs to be licensed.

To define the previous terms more precisely:

  • "front-end code" is code that is executed in a browser, JavaScript most of the time.
  • "concurrent" is development work carried out during the same calendar day, regardless of timezone.

If the Licensee has not purchased sufficient licenses, Licensee will be required to purchase such licenses as required to comply with the terms of this agreement, at a price determined by Licensor, but not to exceed full price. Support will co-terminate with existing licenses.

Third party

Licensee may allow its agents, contractors, and outsourcing service providers (each a "Permitted Third Party") to use the Software licensed to Licensee hereunder solely for Licensee's benefit in accordance with the terms of this agreement and Licensee is responsible for any such Permitted Third Party's compliance with this agreement in such use. Any breach by any Permitted Third Party of the terms of this agreement will be considered Licensee's breach.


MUI offers different products under different plans and licenses. This agreement details the terms and conditions of the MUI X Pro and Premium plans. The Software may have dependencies on MIT licensed code.

Some functionality of the Software is only allowed for use in the Premium plan. See the comparison table for more details.

Source code

The Licensor makes the Software available in source code form at https://github.com/mui/mui-x.

For the avoidance of doubt, the Licensee and its Affiliates shall be permitted to create modifications to the source code of the Software for the Licensee's (and its Affiliates') use in accordance with these terms.

In the event that the Licensee and/or its Affiliates create any modifications to the source code of the Software, the Licensor shall not be obliged to provide support services in relation to any such modification(s).

Evaluation (trial) licenses

You are free to try the Software:

  1. for a limited period of 30 days starting from the first use of the Software in a non-production environment.
  2. for the development of code not intended for production (for example the reproduction of an issue, doing a benchmark).

After the given trial period, you must license the Software if you continue to use it, whether in a production or non-production environment.


The Licensee agrees to pay the license fee for the Software specified via the Site at the time he entered this agreement, using an accepted payment method.

Unless otherwise expressly provided, all amounts referred to in the Site are exclusive of value-added tax ("VAT") which, where chargeable by the Licensor, shall be payable by the Licensee at the rate and in the manner prescribed by law. All other taxes, duties, customs, or similar charges shall be the responsibility of the Licensee.



The Licensee will be eligible to receive all updates and upgrades for the Software during the License Term, starting from the Effective Date.


The Licensee can optionally renew the license for an additional License Term (and any subsequent term thereafter) in order to actively continue development with the Software, or to continue receiving updates and upgrades.


Licensor reserves the right to discontinue the Software or any of its constituents, at any time. However, Licensor shall continue to provide technical support in accordance with the terms of this agreement for any discontinued component.


Initial support period

Licensee will be eligible to receive support for the Software during the License Term, starting from the Effective Date. The support services will be provided in English via a support portal made available to Licensee to submit support ticket. (Currently GitHub issue tracker https://github.com/mui/mui-x).

Support renewal

Support is renewed in conjunction with any maintenance renewal.

Support limitations

Notwithstanding anything else in these terms, the Licensor shall not be obliged to provide support services:

  • (a) in relation to any error to the extent that it is caused by the Licensee's misuse, misconfiguration, alteration, or damage to the Software.
  • (b) in relation to more than a reasonable number of support requests per LICENSED DEVELOPER, during the initial period or a single extended period. These limitations are applied at the sole and reasonable discretion of the Licensor.

Corrective maintenance

Upon receipt of a support request, the Licensor shall use its reasonable endeavors to commence corrective maintenance or otherwise acknowledge the request. However, Licensor is not in any way obliged to perform bug fixing or custom development activities as a result of a support request.

Limitation of liability

To the maximum extent permitted by applicable law, in no event shall either party be liable for any special, incidental, indirect, or consequential damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or any other pecuniary loss) arising out of the use of or inability to use the Software or the provision of or failure to provide support, even if it has been advised of the possibility of such damages.

Licensee understands that the Software may produce inaccurate results because of a failure or fault within the Software or failure by Licensee to properly use and or deploy the Software. Except for Licensor's obligations regarding Intellectual Property, Licensee assumes full and sole responsibility for any use of the Software and bears the entire risk for failures or faults within the Software.

Each party agrees that regardless of the cause of failure or fault or the form of any claim, EACH PARTY'S SOLE REMEDY AND SOLE OBLIGATION SHALL BE GOVERNED BY THIS AGREEMENT AND IN NO EVENT SHALL EITHER PARTY'S LIABILITY EXCEED THE PRICE PAID TO Licensor FOR THE Software. This limited liability, as it relates to Licensor, is void if failure of the Software has resulted from accident, abuse, alteration, unauthorized use, or misapplication of the Software. The limitations and exclusions herein shall not apply to indemnification obligations hereunder.


Warranty authority

Each party represents and warrants that it has the legal power and authority to enter into this agreement.

Compliance with documentation

Licensor warrants to Licensee that, for twelve (12) months after the Effective Date, the Software shall perform substantially in accordance with the documentation. Licensee's exclusive remedy, and Licensor's sole liability, with respect to any breach of this warranty, will be for Licensor to use commercially reasonable efforts to promptly correct the non-compliance (provided that Licensee notify Licensor in writing within the warranty period and allow Licensor a reasonable cure period). If Licensor, at its discretion, reasonably determines that correction is not economically or technically feasible, Licensor may terminate Licensee license to the Software and provide Licensee a full refund of the fee paid to Licensor with respect to the Software.

We provide no warranty, however, for unstable features of the Software. A feature is considered unstable if exposed to Licensee:

  • through an API that includes "unstable" in its name
  • or in a package for which the version is not considered stable according to SemVer versioning models, e.g. alpha, beta, or other pre-releases
  • or documented as "experimental".

Intellectual property

Licensor hereby represents and warrants that the Software does not and will not violate or infringe any third party claims in regards to intellectual property, patents, and/or trademarks and that to the best of its knowledge no legal action has been taken against it for any infringement or violation of any third-party intellectual property rights.

Warranties disclaimers



Licensor's indemnification obligation

Intellectual Property Infringement. Licensor will defend, indemnify and hold harmless Licensee from any claim of copyright, patent or similar infringement provided Licensee notifies Licensor in writing immediately upon notice of such claim and cooperates fully in the defense of such claim. Licensor shall, at its own expense, defend such claim, suit, or action, and Licensee shall have the right to participate in the defense at its own expense.

Licensee's indemnification obligation

Third-party. Licensee hereby agree to indemnify MUI and its officers, directors, employees, agents, and representatives from each and every demand, claim, loss, liability, or damage of any kind, including actual attorney's fees, whether in tort or contract, that it or any of them may incur by reason of, or arising out of, any claim which is made by any third party with respect to any material breach or violation of this agreement by Licensee.


Termination for breach

Either party may terminate this agreement by giving the other written notice if: (a) the other party materially breaches any term of this agreement and it is not possible to remedy that breach; (b) the other party materially breaches any term of this agreement and it is possible to remedy that breach, but the other party fails to do so within 30 days of this being requested in writing; (c) the other party suffers or undergoes an insolvency event or a bankruptcy event or debtor's relief proceeding or ceases to do business. (d) the other party is delayed in performing its obligations under this agreement for a period of 30 days or more. For the purposes of this clause, in order for it to be possible to remedy a breach, it must be possible to take steps so as to put the other party into the same position which (save as to the date) it would have been in if the breach had never occurred.

Effect of termination

Upon termination of this agreement, Licensee license to access and/or use the Software will terminate. Licensee must immediately cease the use of the Software and destroy all copies of the Software in its possession (and require any permitted third parties to do the same).

Termination survival

Any provisions of this agreement containing licensing restrictions, warranties and warranty disclaimers, confidentiality obligations, limitations of liability and/or indemnity terms, audit rights, and any term of this agreement which, by its nature, is intended to survive termination or expiration, will remain in effect following any termination or expiration of this agreement, as will Licensee's obligation to pay any fees accrued and owing to Licensor as of termination or expiration.

Choice of law

This agreement is subject to French law. If any dispute, controversy, or claim cannot be resolved by a good-faith discussion between the parties, then it will be submitted for resolution to the Paris Court of Appeal.

Force majeure

Neither party will be liable for any delay or failure to take any action required under this agreement (except for payment) due to any cause beyond the reasonable control of Licensee or Licensor, as the case may be, including, but not limited to: unavailability or shortages of labor, materials, or equipment, failure or delay in the delivery of vendors and suppliers, fire, flood, earthquake, acts of war, terrorism, epidemic, pandemic, and civil disorders.


The license fee isn't refundable even if Licensee or the Licensed Developers stop using the Software and/or stop using or accessing support and updates. Licensee can use the trial period to determine if the product fits the use case.

Personal data

All information Licensor collects from the Licensee is stored and maintained on servers utilizing reasonable and appropriate data security safeguards. Licensor does not lend, lease, sell, or market information it obtains from its customers or those who provide Licensor personally identifiable information. Licensor does not disclose purchase information or licensing information to third parties. The complete privacy policy can be found at https://mui.com/legal/privacy/.

Last update: July 26th, 2022.

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