Polylexical.com is a database containing over 10,000 French nominal compounds. It was developed as part of my doctoral work on the semantics of compounding in French. At the moment, each entry includes basic information on the compound, such as its gender, number, the parts of speech of its constituents. More information, however, will be added over time.
Feedback is welcome: there is a form available for that purpose on the site or you can simply e-mail me at ybourque((a))gmail.com.