Convert TTF to WOFF
Convert TTF to WOFF free in your browser. No upload, no signup, no watermark. Files stay on your device.
drop a .ttf file
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how to convert ttf to woff
Drop your TTF file
Drag your TTF file into the drop zone above, or click the box to pick a file from your computer or phone. The browser reads the file directly — nothing uploads.
Click Convert
The page runs Custom (W3C WOFF spec) on your device to decode the TrueType Font and encode it as Web Open Font Format. Most conversions finish in a few seconds; large or codec-heavy files (RAW, video) can take longer.
Download the WOFF file
When the conversion finishes, the WOFF file is ready to download. Save it anywhere on your device.
note: Custom implementation of the W3C WOFF1 spec — sfnt tables are zlib-compressed and wrapped in the WOFF header. Uses browser-native Compression Streams.
FAQ
common questions
What is WOFF and why does the web use it?
WOFF (Web Open Font Format) is essentially TTF / OTF wrapped with zlib compression — same font data, smaller file. Browsers download fonts from your server; smaller fonts mean faster page loads. WOFF was standardised in 2009 specifically to optimise font delivery over the network. Every modern browser since ~2012 supports WOFF.
How much smaller will the WOFF be?
Typically 30–50% smaller than the source TTF. WOFF wraps the font's binary tables in zlib (DEFLATE) compression — same algorithm ZIP uses. A 200 KB TTF commonly becomes a 100–150 KB WOFF. WOFF2 (newer, brotli compression) achieves further reductions (~30% smaller again than WOFF).
Can I install a WOFF as a desktop font?
No. WOFF is web-only — it's designed for delivery via CSS @font-face, not for desktop installation. Desktop OS font systems (Windows, macOS) won't recognise WOFF as installable. If you need both web and desktop versions of a font, keep the TTF as the desktop master and use WOFF for the web.
Will the WOFF render identically to the TTF?
Yes — visually identical. WOFF is a compressed wrapper around the same TTF data; decompression yields the exact source bytes. Browsers decompress on load and render using the same font-rendering pipeline. No quality difference.
Should I use WOFF or WOFF2 for my website?
WOFF2 by default — it's smaller and supported by every browser made since ~2018. WOFF is the fallback for IE11 and very old browsers (rarely needed in 2026). For a clean modern setup, serve WOFF2 with a WOFF fallback via the CSS `format()` syntax. TTF as a third fallback is overkill for most sites.