OTF to WOFF2 Converter

Convert a .otf (OpenType) font into the modern, Brotli-compressed .woff2 web format so your pages load faster and use less bandwidth. Everything runs entirely in your browser, so your font file is never uploaded and there is no signup or software to install. When it is done you get the optimised .woff2 plus ready-to-paste @font-face CSS to drop straight into your site.

How to convert OTF to WOFF2

1. Drop your .otf file onto the converter, or click to select it from your device.
2. Leave the Output dropdown set to WOFF2 (web) — the default and the right choice for websites.
3. Pick a font-display option (swap is a safe default) to control how text shows while the font loads.
4. Click Convert & download to save your new .woff2 file.
5. Click Copy CSS to grab a ready-made @font-face rule for your stylesheet.

The whole process happens locally in your browser. Your font is never uploaded to a server, so it stays completely private.

Why convert OTF to WOFF2?

• Smaller files: WOFF2 wraps the font with Brotli compression, typically around 30% smaller than WOFF and much lighter than a raw OTF.
• Faster loads: less data over the wire means quicker rendering and better Core Web Vitals.
• Web standard: WOFF2 is the recommended, purpose-built format for delivering fonts on the web.
• Lossless: the conversion only recompresses the font. Your OpenType CFF outlines are preserved exactly — nothing about the letterforms changes.

OTF vs WOFF2: what’s the difference?

OTF (OpenType Font) is a desktop format, often built on CFF (PostScript, cubic) outlines and packed with advanced typographic features like ligatures and alternates. It is common for professional and display typefaces, but it is not compressed for the web. WOFF2 is a web wrapper around that same font data, adding Brotli compression so it downloads faster.

Converting from OTF to WOFF2 keeps the CFF outlines intact inside the new wrapper — it simply repackages the font for efficient web delivery.

Using your WOFF2 font on a website

Once you have the .woff2 file, reference it with an @font-face rule and point CSS at it with format("woff2"):

@font-face {
  font-family: "My Font";
  src: url("/fonts/my-font.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

body {
  font-family: "My Font", sans-serif;
}

Upload the .woff2 to your server, adjust the url() path and font-family name, and the Copy CSS button gives you this rule automatically.

Frequently asked questions

Is OTF to WOFF2 conversion lossless?

Yes. The tool only recompresses the font for web delivery. The original CFF (or TrueType) outlines are preserved inside the WOFF2 wrapper, so the letterforms are identical to the source OTF.

Will OpenType features (ligatures) still work?

Yes. OpenType feature data such as ligatures and alternates is retained in the font, so those features keep working wherever your CSS or browser enables them.

Do all browsers support WOFF2?

Yes. WOFF2 is supported by all modern browsers, which is exactly why it is the recommended format for web fonts today.

Is it free and private?

Yes. The converter is free and runs entirely client-side in your browser. Your font file is never uploaded and there is no signup.

What if I need a TTF or a full web-font kit instead?

Use the Output dropdown to switch to TTF / OTF for a desktop file, or Web-font kit (ZIP) to download the font plus its @font-face CSS bundled together.

Does converting reduce the font’s quality?

No. WOFF2 uses lossless compression, so file size drops without any loss of quality — the outlines and hinting are unchanged.

Related font & conversion tools

• Font Converter — convert between TTF, OTF, WOFF and WOFF2.
• TTF to WOFF2 Converter — compress a TrueType font for the web.
• WOFF2 to TTF Converter — unpack a web font back to desktop TTF.
• Font Subsetter — shrink fonts further by keeping only the characters you use.
• All font & design tools — browse the full toolkit.