Isotope licenses

Isotope has three kinds of licenses: open-source, commercial, and OEM.

Open source license

The open source license is designed for you to use Isotope to build open source and personal projects. The Isotope open source license is GPLv3. The GPLv3 has many terms, but the most important is how it is sticky when you distribute your work publicly. From the GPL FAQ:

If you release the modified version to the public in some way, the GPL requires you to make the modified source code available to the program's users, under the GPL.

Releasing your project that uses Isotope under the GPLv3, in turn, requires your project to be licensed under the GPLv3. If you are okay with this, feel free to use Isotope under the GPLv3, without purchasing a commercial license.

Commercial license

The commercial license is designed to for you to use Isotope in commercial products and applications, without the provisions of the GPLv3. With the commercial license, your code is kept propietary, to yourself. If you want to use Isotope to develop commercial sites, themes, projects, and applications, the commercial license is the appropriate license.

Purchasing a commercial license

Commercial licenses are no longer available for Isotope v2. Upgrade to Isotope v3 to purchase a current commercial license.

Commercial Licenses are priced per developer. A developer is someone on your team working on a project that uses Isotope.

The Isotope Commercial Developer License is for individual developers. Each individual developer needs to purchase a separate license.

The Isotope Commercial Team License is for up to 8 developers.

The Isotope Commercial Organization License is for an unlimited number of developers. This license covers the entire team no matter how many developers are working on it.

Read the Isotope Commercial License Agreement below for complete terms and details.

For any questions about licensing, contact us

Commercial OEM license

If you want to include Isotope as part of a commercial interface builder, SDK, or toolkit, choose the Commercial OEM license. Commercial OEM licenses are customized for each customer. Contact

Isotope Commercial License Agreement

Below are the official Isotope Commercial License terms, as well as a plain English summary of the terms. These summaries are provided for your convenience, but are not binding; your use of Isotope is governed by the full license terms.

Select Commercial License.


  1. Application” means any software, application, or elements that Your Licensed Developers develop using the Software or Modifications in accordance with this Agreement.
  2. End User” means an end user of Your Application who acquires a license to such solely for their own use and not for distribution, resale, user interface design, or software development purposes.
  3. Licensed Developer” shall mean an individual person permitted to use the Software and make Modifications for your Applications, whether such person is Your employee or a consultant or contractor providing services to You.
  4. Modification” means any revision, adaptation, or derivative of the Software produced by You.
  5. The “Software” means Isotope version 2.

Commercial license grant


Prohibited Uses


Disclaimer of Warranties

Limitation of Liabilities


Payment and Taxes