I've gone through a couple of Question on GPL here, but all of them are related to the compiled languages, libraries and distribution. My web project has a backend that is [BSD licensed][1]. The front end is a GPLv3 licensed JavaScript framework which renders a background image that doesn't link to anything from the backend and only renders in the web browser. Am I required to make available the backend code to the public if I use the GPLv3 licensed library? We are not modifying the GPLv3 licensed library, just using it as is. Update I've contacted the library author here is his reply: > I am not a lawyer, so all I can say is that *The Library* is made > available under the GPLv3. Including it as a dependency in a > commercial program does not, to my understanding, violate GPLv3. > Including a modified version of it without releasing the source to the > modified version would. [1]: https://github.com/django/django/blob/master/LICENSE