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Web Font Inspector & Converter

Open TTF, OTF, WOFF, and WOFF2 files locally to inspect names, metrics, tables, glyph coverage, variable axes, embedding flags, and create real WOFF/WOFF2 conversions.

Local font lab
WOFF/WOFF2 output is truly encoded and then re-parsed and loaded with FontFace; unsupported outline conversions are disabled.
TTF, OTF, WOFF, and WOFF2 only; up to 12 files and 50 MB each.

About Web Font Inspector & Converter

Inspect OpenType data, preview glyphs, and create verified web-font files. Open TTF, OTF, WOFF, and WOFF2 files locally to inspect names, metrics, tables, glyph coverage, variable axes, embedding flags, and create real WOFF/WOFF2 conversions. The core workflow is designed to run in your current browser.

Key capabilities

  • Inspect naming, metrics, cmap coverage, OpenType tables, variable axes, and color tables
  • Load the local font with FontFace and adjust size, spacing, line height, and variation axes
  • Encode and decode WOFF/WOFF2 data and verify magic bytes, tables, and browser loading
  • Subset TrueType-outline fonts by Unicode text and package the font with CSS and reports

Useful for

  • Prepare a licensed font for web delivery
  • Check glyph coverage, metrics, and embedding restrictions
  • Share a verified font package and CSS font-face declaration

Frequently asked questions

Is Web Font Inspector & Converter free to use online?

Yes. Web Font Inspector & Converter opens in a modern browser and does not require desktop software installation.

What is Web Font Inspector & Converter useful for?

Common use cases include Prepare a licensed font for web delivery; Check glyph coverage, metrics, and embedding restrictions.

Is my input or file uploaded?

The core processing workflow is designed to run locally in the browser. Key capabilities include Inspect naming, metrics, cmap coverage, OpenType tables, variable axes, and color tables, Load the local font with FontFace and adjust size, spacing, line height, and variation axes, Encode and decode WOFF/WOFF2 data and verify magic bytes, tables, and browser loading; account, comments, and anonymous analytics may still create normal site requests.

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