Specialized converter · runs 100% in your browser

OTF to WOFF2 Font Converter

Convert OTF font files to WOFF2 format directly in your browser using a WebAssembly build of woff2. WOFF2 files are 30-50% smaller than OTF, ideal for fast-loading web pages. The font binary stays on your device throughout.

No uploadNo signupNo trackingFree, unlimited
Drop your OTF file here
or click to choose a file

How to use

  1. Drop your OTF font file.
  2. wawoff2 (WebAssembly) compresses the font in your browser.
  3. Click Download to save the WOFF2 file.
  4. Drop it onto your CSS @font-face declaration or font installer.

FAQ

Will font hinting survive the conversion?

Yes. wawoff2 preserves all font tables — glyphs, hinting, kerning, OpenType features. The compression is lossless.

Does my font upload to a server?

No. Conversion runs entirely in your browser using WebAssembly and Web APIs. Open the Network tab in DevTools while you convert — you'll see no outbound traffic carrying your file.

Is this really free?

Yes. No signup, no quota, no upgrade tier. The conversion runs on your machine, so it costs us nothing to host.

Is there a font size limit?

Browser memory is the only ceiling. On a modern desktop browser, a few hundred megabytes works fine. Mobile devices have tighter limits.

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