GlyphProof 0.1 — Solo Licence

Offline, read-only preflight for OpenType font files you are authorised to inspect. GlyphProof creates an auditable JSON report and a client-readable HTML report without modifying or uploading the font.

Checks include parsing, SHA-256, naming and version data, glyph count, units per em, required Latin/basic characters, common accents, decimal-digit widths, and the presence of GPOS, GSUB and kern tables.

Solo licence: internal commercial use by one natural person. Generated reports may be shared with that person’s own clients. Additional team members, employees, contractors, departments and entity-wide use are not covered. Redistribution, resale, sublicensing, public hosting, or offering GlyphProof itself as a competing tool or service are prohibited.

Requires Python 3.10+ and FontTools 4.63–4.x. Provided as-is. This is a mechanical preflight, not a design-quality, hinting, language, licensing, accessibility, trademark, print-production or legal certification. No custom font work, repair, conversion, ongoing support or future updates are included.

Missing something? Tell us in one line what you wish someone would make for you — one-line form: https://docs.google.com/forms/d/1tzMQtHsEbMg7JyMk7YGqslHijfNTciByi8wrwjQpUPY/viewform (or email submissions@lilambd.com, subject "Data wish"). If enough people ask, we build it, and you get it free.

Used this? Tell us what you used it for, what was missing, and what you used before: https://docs.google.com/forms/d/1tzMQtHsEbMg7JyMk7YGqslHijfNTciByi8wrwjQpUPY/viewform (one minute, no email asked).