Font Inspector

Inspect outlines, glyph and Unicode coverage, variation axes, OpenType tables, embedding bits, color-font data, vertical metrics, and normalized validation warnings.

Choose a font

Signature-verified, non-collection TTF, OTF, WOFF, and WOFF2 fonts are supported. The public upload limit remains 1 GB.

Inspection is read-only. Subsetting is inherently lossy. Transforming a font does not grant redistribution, embedding, publishing, or other license rights, and Convertr conservatively blocks transformations when selected fsType bits prohibit them.

Font Inspector

Report normalized structure, coverage, variation, embedding, color, metrics, table, and validation facts for a supplied font.

Input
One signature-verified non-collection TTF, OTF, WOFF, or WOFF2 font.
Output
A bounded font inspection report.
Real limitations
Inspection does not prove licensing rights or compatibility with every shaping engine, operating system, or application.
Privacy and data handling
one signature-verified non-collection TTF, OTF, WOFF, or WOFF2 font is uploaded to a compatible Convertr worker only after you start the operation. Processing is automated, and temporary source and result files are deleted automatically after processing rather than retained as permanent storage.

How to use this tool

  1. Choose one signature-verified non-collection TTF, OTF, WOFF, or WOFF2 font and wait for the page to validate it.
  2. Set the available output or inspection options, then start processing.
  3. Review the reported result and download a bounded font inspection report before the temporary link expires.

Common failure modes

Collections, malformed tables, recursive composites, unsafe compressed expansion, bitmap-only fonts, and unsupported structures are rejected.

Useful example

Upload a variable WOFF2 font to review its axes, named instances, scripts, Unicode blocks, color tables, and embedding bits.