Dê uma olhada em woffTools :
woffTools is a collection of command line tools for verifying and examining WOFF files. This is also a Python package that can be used to manipulate and examine WOFF files just as you can examine SFNT files with FontTools.
woff-validate - Validate a WOFF file and output an HTML report.
woff-info - Generate an HTML file containing information about a WOFF file.