https://ligatures.vercel.app/
Ligatures - Font Testing & OpenType Feature Explorer
Upload and test fonts with live preview. Explore OpenType features, variable font axes, and generate CSS code. A modern font testing tool for designers and...
opentype featureligaturesfonttestingexplorer
https://fontinfo.app/
Font Info - Free Online Font Analyzer & OpenType Feature Viewer
font infofree onlineopentype featureanalyzerviewer
https://www.mail-archive.com/dev-context@ntg.nl/msg01325.html
Re: [dev-context] OpenType Optical Bounds 'opbd' feature
devcontextopentypeopticalbounds
https://mirror.twds.com.tw/ubuntu/pool/universe/f/fonttools-opentype-feature-freezer/
Index of /ubuntu/pool/universe/f/fonttools-opentype-feature-freezer/ | Taiwan Digital Streaming Co....
Index of /ubuntu/pool/universe/f/fonttools-opentype-feature-freezer/ | Taiwan Digital Streaming Co. Open Source Project Mirror Site
https://bugs.scribus.net/view.php?id=15490
0015490: Give users access to the OpenType feature "Contextual Alternates" (calt) - Mantis Issue...