TTF to WOFF
Convert fonts between TTF, OTF and WOFF losslessly.
Prepare a Font for Your Website
Websites load fonts as WOFF: the same TrueType or OpenType data, compressed for the web, usually 40–60% smaller. Drop a .ttf or .otf file to preview it, see its family, style, version and glyph count, and download a .woff with a ready-made @font-face rule to paste into your CSS. It also works the other way, turning a .woff back into a .ttf or .otf you can install on your computer.
The conversion is lossless — each table in the font is compressed or unpacked as it is, so every glyph, hint, kerning pair and OpenType feature survives. Check that the font’s licence allows web embedding before you publish it.
Key features
- TTF / OTF → WOFF and WOFF → TTF / OTF.
- Lossless: glyphs, hinting and OpenType features untouched.
- Live preview of the font with sample text.
- Font details: family, style, full name, version, outlines and glyphs.
- @font-face CSS generated for you.
This tool does its work inside your browser using native Web APIs. The files and text you give it are processed on your device and are not uploaded to our servers.
How to use: TTF to WOFF
- Open the font
Drop a .ttf, .otf or .woff file onto the box. - Check it
Read the preview and the font’s details. - Convert
Download the WOFF for the web, or the TTF/OTF for your computer. - Use it
Copy the CSS rule into your stylesheet and upload the .woff beside it.
Technical specifications
| Processing location | Entirely in your browser — no server round trip |
|---|---|
| Data uploaded | None. Files and text never leave your device |
| Price | Free — no account, no trial, no usage cap |
| Category | Converters |
| Works offline | Yes, once the page has loaded |
| Browser support | Chrome 90+, Edge 90+, Firefox 90+, Safari 15+ |
| Interface languages | English, 中文, हिन्दी, Español, العربية |
Frequently asked questions
Why not WOFF2?
WOFF2 uses Brotli compression, which browsers can decode but not create. WOFF is supported by every browser, and a server with gzip or Brotli narrows the gap further.
Will the font look any different?
No. WOFF wraps exactly the same font tables in compressed form; the browser unpacks them before use.
Can I convert a font collection (.ttc)?
No — extract a single font from the collection first.
Am I allowed to use any font on my website?
Only if its licence allows web embedding. Many free fonts (for example those under the SIL Open Font Licence) do; many desktop font licences do not.
How much smaller is WOFF than TTF?
Typically 40 to 60 percent, depending on the font. The saving comes from compressing each table; glyph outlines compress well, while already-compact tables change little.