Licensing

ESP is licensed under two separate licenses. You may use either, provide you fully comply with the governing terms.

ESP Commercial License

The ESP commercial license is a royalty-free license that provides you with the following benefits:

licensing@embedthis.com.

Open Source License

ESP my be used with the GPL Open Source license. This is ideal for evaluating ESP, for internal use, stand-alone use, or for integrating exclusively with other GPL software. If you intend to distribute your software and link ESP with your application, the GPL requires you to provide public and full access to all source code and documentation on a nondiscriminatory basis. If you do not wish to provide source code to your application, you must purchase a commercial license.

Evaluating ESP

If you are evaluating ESP internally, and not distributing any products containing ESP, then you may be able to use the GPL license for this evaluation. Once complete, you may purchase a commercial license so that you can distribute your product. You may evaluate, develop, modify, and embed ESP in your application or product provided it is not distributed. You may copy and modify the source code provided all copies fall under the GPL license.

Stand Alone Use

If you are using ESP in a stand-alone manner as free-standing binaries, and are not integrating the ESP source code or libraries with your software to create a derivative work, then the GPL license may be sufficient. Stand-alone use does not permit linking ESP using either static or dynamic linking.

Use with Other GPL Software

If you are integrating ESP source or libraries into your application and your software is also fully licensed under the GPL license, you may use ESP with the GPL license and embed ESP in your applications or devices. You do not need any other agreement or license — the GPL is all you require.

Embedding with Non-GPL Software

If ESP is embedded into your application, or your application is linked using static or dynamic linking with libraries containing any ESP source code and you do not wish to publish your source code under the GPL, then you will need the ESP Commercial license.

Please contact licensing@embedthis.com if you have any questions about licensing ESP.

© Embedthis Software, 2003-2015. All rights reserved.