Font Subsetter Online

Free online font subsetter

Keep only the characters your website needs

Inspect TTF, OTF, WOFF or WOFF2 fonts, choose languages, Unicode ranges or exact text, and create smaller WOFF2 files with matching CSS.

Three precise selection methodsChoose language groups, Unicode blocks or characters from your text
Coverage shown firstSee what each uploaded font actually supports before generating
Complete webfont kitDownload WOFF2 files, CSS, a demo, README and manifest

Add TTF, OTF, WOFF or WOFF2 fonts

Upload one font or a family with several styles. We decode and inspect every file before you choose characters.

Check your fonts

Review each font’s name, style and character count. Permission information comes from the file; always check the font licence.

File	Font name	Style	Characters	Permissions

Subset and webfont options

Choose exactly what to keep, then select balanced or more aggressive optimization.

Optimize your webfonts

Choose how much to reduce each font. Recommended keeps the quality and text shaping most websites need.

Balanced (recommended)Smaller files with hinting, kerning and essential text shaping kept. Smallest filesRemoves hinting for extra savings while keeping kerning and essential shaping. Keep everythingKeeps hinting, metadata and every OpenType feature when exact rendering matters more than file size.

Expert settingsFine-tune exactly what stays in the generated fonts.

Screen hintingHinting can improve small text on older or low-resolution screens. Line-height metricsAligning can make line height more consistent across browsers, but may change vertical spacing. Extra OpenType feature tagsLeave empty for standard web features, or enter comma-separated four-letter tags to keep additional features.

Keep kerningPreserves the intended spacing between specific letter pairs. Keep every OpenType featureRetains optional ligatures, alternates and specialist features, but can increase file size. Keep legacy font dataPreserves glyph names and older records used by some specialist tools.

Custom CSS font name (optional)Leave blank to keep different fonts separate. A custom name applies to every uploaded font; use it only for styles of the same font. Text while fonts load (font-display)

Include WOFF for older browsersAdds broader old-browser support but makes the kit larger. WOFF2 is recommended for modern browsers. Include a subsetted TTF or OTF copyAdds the subset in its underlying desktop-font format as well as the WOFF2 webfont.

Your download includes

Web-ready WOFF2 font files
fonts.css to add the fonts to your website
Preview page where you can try your own text
README notes and technical details (manifest.json)

I confirm that I have permission to convert, subset and use these fonts on the web.

Open demo.html after downloading and try your website text before publishing. Keep fonts.css and the fonts folder together.

Before you download

Subsetting saves bytes by removing glyphs

A subset is intentionally incomplete. It can be very effective for web performance when its selected character coverage matches the text visitors will see.

Exact text makes the smallest focused file

Use exact text for fixed logos, headings or campaign copy that will not change.

Language groups allow content to grow

Select the scripts and symbols required by your audience when editors may change the wording.

Keep shaping features that matter

Kerning and essential shaping stay by default. Test complex scripts and optional OpenType features carefully.

Font subsetting questions

What happens to characters I do not select?

Their glyphs are removed from the generated subset. A browser must use another font when the page later contains an unsupported character.

Should I choose exact text or a language group?

Exact text is best for fixed copy. Choose language groups or Unicode ranges for editable content that needs a predictable character set.

Can subsetting add missing language support?

No. A subset can only retain characters already present in the source. The inspection step shows actual coverage.

Choose your language

Font Subsetter Online

Keep only the characters your website needs

Add TTF, OTF, WOFF or WOFF2 fonts

Check your fonts

Choose which characters to keep

Choose language groups

Select individual Unicode ranges