TTF to WOFF Converter - Free Online Tool

Upload your TTF file and convert it to WOFF format instantly. Optimize fonts for websites, reduce file sizes, and improve web performance with our free converter.

Converts in seconds

Files removed after use

Free · No account

A TTF file holds everything a browser needs to render a typeface, just packaged for the wrong job. It ships the OpenType data raw, with no compression layer built for HTTP, so the file lands heavier than it needs to be and text paints slower.

This TTF to WOFF converter rewraps that same data as WOFF, the original compressed web font format: free to use, no account, and lossless. Kerning, ligatures, stylistic alternates, language features, and variable axes all survive the conversion untouched.

What changes is the size, not the font. WOFF wraps the outlines in zlib compression, landing roughly 20–30% under the source TTF, and it carries one quality the newer WOFF2 cannot match: it works in browsers going all the way back to Internet Explorer 9.

Convert ttf to woff

ttfwoff

Drop your TTF file here

or browse files · Max 10 MB

.ttf

What happens when you convert TTF to WOFF

A TTF is a desktop format. The glyph outlines, the hinting, the OpenType feature tables, all of it is identical to what the web consumes, but it is stored uncompressed because a desktop install pays no HTTP cost for it.

A browser does. WOFF, introduced in 2009 and made a W3C Recommendation in 2012, is a compressed wrapper around that exact data: the same glyphs and the same OpenType features, repackaged with zlib compression and a small metadata block so a browser can load it directly through @font-face.

The result is smaller without being lesser. A WOFF file runs 20–30% under the source TTF, and nothing inside it is discarded.

Converting TTF to WOFF is lossless: the rendered output is the same shape on screen, with every kerning pair and OpenType feature intact.

The split is simple. The TTF stays on the desktop as the editable source; the WOFF goes to the server as a web-deliverable file that every browser in current use, and many long out of date, can read.

When to convert TTF to WOFF instead of WOFF2

WOFF and WOFF2 are both compressed web font formats built around the same OpenType data; the difference is the compression and the reach. WOFF uses zlib.

WOFF2, the newer format, uses Brotli plus a glyph-aware transform and lands about 30% smaller again, but it only reaches browsers from roughly 2014 onward. WOFF has no such cutoff. It is supported in every browser back to Internet Explorer 9, which is exactly why it still has a job.

That job is fallback. For almost every modern site, WOFF2 is the format to lead with.

WOFF earns its place as the second file in the stack: declare WOFF2 first and WOFF second in the same @font-face rule, and a current browser takes the smaller WOFF2 while an older one that cannot decode Brotli falls back to the WOFF.

That belt-and-braces pairing is the main reason to generate a WOFF at all in 2026 - legacy corporate stacks, kiosk systems, and embedded browsers that predate WOFF2 support.

TTF (Input)	WOFF (Output)
Uncompressed OpenType	zlib-compressed wrapper
Desktop install format	Web delivery format
Baseline file size	~20–30% smaller
Renders on desktop, not optimized for HTTP	All browsers, including IE9+
Editable in Figma, Illustrator, font editors	99%+ global browser coverage
Variable axes supported	Variable axes preserved

From TTF upload to a deployed WOFF @font-face

Three steps move a font from desktop TTF to live WOFF webfont:

Upload the TTF - Drop the file on the font converter or browse to it.
Conversion runs server-side - zlib compression is applied while every kerning table, OpenType feature, ligature, stylistic alternate, and variable axis is preserved exactly. The TTF is removed from the server once the WOFF is delivered.
Download the WOFF and wire it in - A generated @font-face snippet comes with the file, ready to paste into a stylesheet.

Because WOFF is most useful as a fallback, the safe declaration pairs it with WOFF2:

@font-face {
  font-family: 'Your Font';
  src: url('/fonts/your-font.woff2') format('woff2'),
       url('/fonts/your-font.woff') format('woff');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

The format() hints let a browser skip any file it cannot decode, so a WOFF2-capable browser never requests the WOFF, while an older one drops straight to it. font-display: swap shows a fallback face while the webfont loads, which keeps text visible during the request and holds layout shift down.

Frequently asked questions

Is the TTF to WOFF converter free?

Yes. It runs without an account, with no signup, paywall, or cap on the number of conversions.

Should I convert TTF to WOFF or to WOFF2?

For most modern sites, lead with WOFF2 and use WOFF only as a fallback. WOFF2 is smaller and covers 97%+ of traffic, but it does not reach browsers older than around 2014. WOFF reaches everything back to Internet Explorer 9, so converting to WOFF gives you the file that keeps a legacy or embedded browser covered.

Will kerning and OpenType features survive when I convert TTF to WOFF?

They do. WOFF is a wrapper around the same OpenType data the source TTF already contains, so kerning pairs, ligatures, stylistic alternates, and language features all carry through. The conversion is lossless and the rendered WOFF is identical to the source TTF.

Does the TTF to WOFF converter handle variable fonts?

Yes. Variable axes are preserved in the WOFF output, including weight, width, slant, optical size, and any custom axes. That said, if variable fonts are the priority, WOFF2 is the better-suited delivery format.

Which browsers support WOFF?

Every current browser supports WOFF, and so do older ones going back to Internet Explorer 9 - broader reach than WOFF2, which is the whole reason WOFF still gets used as a fallback.

Is there a file size limit for the TTF?

The converter accepts a TTF up to 10 MB, which covers nearly every desktop font. Very large CJK or Indic families with extensive glyph sets take a moment longer to process but generally complete without issue.