When using a Free or Open Source project in a professional environment, you'd better check you understand and respect the license. But a project can be dependent of other projects, with each using a different license. You also have file-based licenses. Dealing with licenses is one problem that Fossology.org software wants to ease solving. Once installed, you can upload a package to it, and it will analyse the package and give you access to lots of data it found, notably the licenses used in the software. As shown in the demos, it lets you identify the file subject to a specific license, or list all licenses used for files in a specific directory.

The Fossology software is available for download under the GPLv2 license