TTF to WOFF Converter

Transform TTF fonts to WOFF format online for optimized web typography

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Rapid Conversion

TTF to WOFF conversion completes in seconds — the compression is fast, and your web-ready font is available for immediate download.

Lossless Font Packaging

Your TTF outlines, kerning pairs, and hinting instructions are preserved exactly inside the WOFF container with no quality loss.

Private and Secure

Uploaded TTF fonts are removed from our servers instantly after conversion, and WOFF results are deleted within 24 hours.

How to convert TTF to WOFF

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose woff or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your woff file right afterwards

About formats

TTF (TrueType Font) is a scalable outline font format developed by Apple Computer in the late 1980s and first shipped with Mac System 7 on May 13, 1991. Microsoft licensed the technology shortly after and included TrueType support in Windows 3.1 in 1992, establishing it as the dominant desktop font technology for over a decade. TrueType describes glyph shapes using quadratic Bezier splines — simpler mathematically than the cubic Bezier curves in PostScript fonts — stored alongside a powerful instruction set (the "hinting" language) that controls exactly how outlines are rasterized at each pixel size. This instruction-based hinting gives type designers pixel-level control over rendering at small sizes on low-resolution screens, producing exceptionally crisp text. The format stores all font data — outlines, metrics, kerning, naming, and hinting — in a single file organized as a directory of tagged data tables. One advantage is universal platform support: TTF files render natively on Windows, macOS, Linux, iOS, Android, and virtually every operating system and web browser without conversion or plugins. The byte-code hinting system is another distinctive strength, enabling screen rendering quality that remained superior to competing technologies until high-DPI displays reduced the importance of pixel-level optimization. TrueType's table-based architecture also proved remarkably extensible, serving as the structural foundation for the OpenType specification that added advanced typographic features and PostScript outline support on top of the TrueType container.
Developer: Apple Computer
Initial release: May 13, 1991
WOFF (Web Open Font Format) is a web font container format developed by Jonathan Kew, Tal Leming, and Erik van Blokland, and standardized by the W3C as a Recommendation in December 2012. The format wraps existing TrueType or OpenType font data in a compressed container with additional metadata, specifically designed for efficient delivery over HTTP as part of web pages using the CSS @font-face rule. WOFF applies table-level zlib compression to the font data, typically achieving 40-50% size reduction compared to raw TTF or OTF files, while preserving every table and glyph exactly. An extended metadata block allows foundries to embed licensing information, credits, and descriptions that travel with the font file. WOFF was created to address a practical impasse: type foundries were reluctant to allow their fonts on the web in raw TTF/OTF form (easily installable as desktop fonts), while the web standards community needed a freely implementable font delivery mechanism. One advantage is universal browser support — every modern browser across desktop and mobile platforms renders WOFF natively, making it the baseline format for web typography. The distinct file signature and container structure also provides a licensing benefit, giving foundries a format distinguishable from desktop fonts while remaining technically straightforward. WOFF 2.0, standardized in March 2018, replaces zlib with Brotli compression for an additional 20-30% size reduction and has achieved similarly broad browser adoption. Together, WOFF and WOFF2 enabled the custom web typography revolution that transformed web design from a handful of system fonts to millions of typeface options.
Developer: W3C
Initial release: December 13, 2012

Frequently Asked Questions

Why convert TTF to WOFF?

WOFF wraps TrueType data in a compressed container, reducing font size by 30-50% compared to raw TTF — essential for fast-loading websites.

What programs open WOFF fonts?

All major browsers (Chrome, Firefox, Safari, Edge) render WOFF natively. Desktop tools like FontForge and TransType can also open them.

Will my TTF glyphs look different in WOFF?

No. WOFF is a lossless container — the glyph outlines, hinting, and metrics from your TTF remain completely unchanged after conversion.

Can I batch convert multiple TTF fonts to WOFF?

Yes. Convertio supports batch uploads, so you can convert an entire font family from TTF to WOFF in one session.

Is the TTF to WOFF conversion free on Convertio?

Convertio offers free TTF to WOFF conversion. Simply upload your font and download the WOFF result — no registration required.

TTF to WOFF Quality Rating

4.8 (23,220 votes)
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