List which characters a font covers locally - mapped Unicode code points, ranges and blocks. No upload.
Running locally on your device ...
Running locally on your device ...
0%
Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
Before you use a font for a language or a specific text, it helps to know which characters it actually contains. A font maps characters to glyphs through its 'cmap' table, and that mapping decides whether your accented letters, currency symbols, Greek, Cyrillic or punctuation will show up or fall back to a different font. This page reads the cmap and reports exactly which Unicode code points the font covers.
The report lists the total number of mapped code points, the lowest and highest covered code point, and a breakdown by Unicode block (for example Basic Latin, Latin-1 Supplement, Latin Extended, Greek, Cyrillic, General Punctuation) with how many code points of each block the font provides. It works on TTF, OTF, WOFF and WOFF2 - the WOFF wrappers are unpacked first - so you can check any common font file.
Everything runs entirely locally in your browser (no upload, even offline) - the font never leaves your device. Honestly framed: it reports which code points the cmap maps to a glyph; it does not judge how good each glyph looks, and a font may map a code point to a placeholder. A non-font or corrupt file is rejected with a clear message.
| Input formats | TTF, OTF, WOFF, WOFF2 |
|---|---|
| Output format | TXT |
| Batch processing | Yes |
| Processing | Locally in your browser (WebAssembly) |
| File upload | None |
Limitations: Reads a font's cmap table and reports its character coverage: the count of mapped Unicode code points, the covered code-point range, and a per-Unicode-block breakdown. Works on TTF, OTF, WOFF and WOFF2 (the WOFF wrappers are unpacked first). It reports which code points map to a glyph; it does not assess glyph quality. A non-font or corrupt file is rejected with a clear error.
No. The font is parsed entirely locally in the browser - even offline. It never leaves your device.
It is the set of Unicode code points the font's cmap maps to a glyph - the characters the font can display without falling back to another font.
If a code point is not in the font cmap, the font has no glyph for it and a viewer will substitute another font. The report shows exactly which code points are present.
TTF, OTF, WOFF and WOFF2. WOFF and WOFF2 are unpacked to the underlying sfnt before the cmap is read.
Font Information · TTF to WOFF2 · WOFF2 to TTF · WOFF to WOFF2 · SVGZ to SVG · PSD to JPG · Font subsetting · TTF to EOT