Converting OTF to WOFF2 produces the smallest web font file the current format ecosystem supports. Brotli compression shrinks OTF source by 60–80%, with every glyph, feature, and hint preserved. This is the default modern way to ship OpenType fonts on the web.
Drag & drop font files here, or browse
Drop your OTF files here
Lossless conversion. Brotli compression saves 30% over WOFF. File is unusable in very old browsers (IE9–11, Safari <10) but works in every modern browser since 2017.
WOFF2 is supported in Chrome 36+, Firefox 39+, Safari 10+, Edge 14+, and all modern browsers. Older browsers need WOFF fallback.
OTF (OpenType) is Microsoft and Adobe's extension of the TrueType format. It adds cubic Bézier (PostScript/CFF) glyph support plus rich typographic features: stylistic alternates, ligatures, small caps, contextual substitutions, and the full OpenType feature model. Professional typography depends on OTF's capabilities.
WOFF2 uses Google's Brotli compression instead of zlib, cutting file size another 30% versus WOFF. It's the current standard for web font delivery, supported in every modern browser since 2017. A typical Latin-only WOFF2 is 20–40% the size of the source TTF.
Yes, completely. WOFF2 losslessly compresses the OTF's tables. Every feature (kerning, ligatures, variable-font axes, stylistic sets) works exactly as in the source.
Typically 60–80% smaller than the OTF. A 300 KB OTF often becomes a 60–80 KB WOFF2 with zero quality loss.
OTF (OpenType) is Microsoft and Adobe's extension of the TrueType format. It adds cubic Bézier (PostScript/CFF) glyph support plus rich typographic features: stylistic alternates, ligatures, small caps, contextual substitutions, and the full OpenType feature model. Professional typography depends on OTF's capabilities.
WOFF2 uses Google's Brotli compression instead of zlib, cutting file size another 30% versus WOFF. It's the current standard for web font delivery, supported in every modern browser since 2017. A typical Latin-only WOFF2 is 20–40% the size of the source TTF.
Yes. The converter runs entirely in your browser using WebAssembly. Your font files are never uploaded, never sent to a server, and never leave your device.
There's no hard limit. Font files are usually small (under a few MB), so even very large fonts process without issue. Variable fonts with many axes are handled cleanly.