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Font format

WOFF2 converter

WOFF2 (.woff2) is the current web-font format: a font's sfnt tables preprocessed and squeezed with Brotli compression so pages download less type data. It is purely a transport wrapper — decompressing a .woff2 reconstructs a working TrueType or OpenType font.

Private for supported formats — processed in your browser

Convert supported files

Runs on your device

Drop WOFF2 files here

Batch files can each use a different output. Nothing uploads for local conversions.

Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.

Where WOFF2 comes from

Google's font-compression research fed into the W3C effort that produced WOFF2, and the specification reached Recommendation status in 2018. It succeeded the zlib-based WOFF 1.0 by delivering roughly thirty percent smaller files, and Google Fonts switching to it made it the dominant delivery format within a few years.

How WOFF2 works

  • Brotli compression over the whole font, preceded by a glyf and loca transformation that re-encodes outline data for better compressibility.
  • Averages around 30% smaller than WOFF 1.0 on the same font, with larger wins on CJK fonts.
  • Cannot be installed as a system font — it must be unpacked to TTF or OTF first.
  • Passes payload tables through intact, so variable fonts and color-font tables survive completely.

When to use WOFF2

  • Serving fonts on production websites as the default @font-face source
  • Shrinking variable fonts for web delivery
  • Delivering icon fonts efficiently
  • Meeting page-weight performance budgets

Strengths and limitations

Strengths

  • The smallest deliverable font format, cutting load time and bandwidth
  • Lossless — full fidelity of the wrapped font is preserved
  • Supported by every browser that matters today

Limitations

  • Operating systems will not install it, so designers juggle separate web and desktop copies of the same font
  • Encoding is computationally heavier than WOFF, though that cost is paid once at build time

Compatibility

Chrome, Firefox, Safari, and Edge have all supported .woff2 for years — coverage is effectively universal outside long-dead browsers like Internet Explorer, which never adopted it. Because no operating system accepts it for installation, workflows convert to TTF or OTF whenever a font must leave the browser.

All metadata of the wrapped font survives untouched, and the container can additionally carry an optional extended-metadata XML block from the vendor.

Convert WOFF2 to another format

Convert other formats to WOFF2