Google Fonts Tools is a set of command-line tools for testing font projects
A python API for evaluating coverage of glyph sets in font projects.
A python API to access data from the Google Fonts variable fonts axis registry.
A python API for evaluating language support in the Google Fonts collection.
Font regression tester for Google Fonts
Diff two sets of fonts in different browsers
Count letters, letter pairs and words in text files. Also covers Devanagari and Bengali conjuncts