How to Convert TTF to WOFF for Web Fonts — Free, No Upload

The fastest free way to convert a TTF font to WOFF for your website is a browser-based converter — upload your TTF, select WOFF as output, and download a web-ready font file in under 10 seconds. No software, no server upload, no account required.

WOFF (Web Open Font Format) is the standard format for self-hosted web fonts. It packages the same font data as TTF or OTF but with compression applied — typically 30-40% smaller. That means faster @font-face loads, which matters most on mobile connections. If you have a TTF you want to use on your website, converting it to WOFF is the right move.

Why Use WOFF Instead of TTF on Your Website?

You can serve TTF directly via @font-face — all modern browsers support it. But there are good reasons to prefer WOFF:

Format	Typical Size	Browser Support	Best For
TTF	100KB baseline	All modern browsers	Desktop installation
WOFF	~65KB (35% smaller)	All modern browsers (IE9+)	Web delivery
WOFF2	~50KB (50% smaller)	Chrome 36+, Firefox 39+, Safari 12+	Best web performance

WOFF hits the sweet spot: broad browser support going back to IE9, meaningful file size reduction, and no quality loss. For most projects, serving WOFF covers 99%+ of users. If you also need WOFF2 for maximum performance, convert your TTF separately using a WOFF2-specific tool (our converter handles TTF, OTF, and WOFF — WOFF2 requires brotli compression that needs a dedicated tool like fonttools or Transfonter).

Converting TTF to WOFF in 3 Steps

1. Open the Font Converter — No signup needed. Runs entirely in your browser.
2. Upload your TTF file — Drag your .ttf file into the upload area. The tool accepts TTF, OTF, and WOFF input files.
3. Select WOFF output and download — Choose WOFF from the format options. Click Convert and your browser downloads the .woff file immediately.

The tool shows a live font preview before and after conversion, so you can visually confirm the font looks correct. Since everything runs in your browser, the font file never leaves your machine — no privacy concerns for proprietary or licensed fonts.

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How to Add Your WOFF Font to CSS @font-face

Once you have the WOFF file, add it to your project folder (for example, a /fonts/ directory). Then declare it in your CSS:

@font-face {
  font-family: 'YourFontName';
  src: url('/fonts/your-font.woff') format('woff');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

With WOFF2 also available, a more complete declaration gives browsers the best format they can handle:

@font-face {
  font-family: 'YourFontName';
  src: url('/fonts/your-font.woff2') format('woff2'),
       url('/fonts/your-font.woff') format('woff');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

The font-display: swap tells the browser to show fallback text immediately while the web font loads — avoiding the invisible-text flash (FOIT). This is generally the right default for body text.

After declaring the font, reference it in your CSS with font-family: 'YourFontName', sans-serif; — the fallback ensures text remains readable if the font fails to load.

Uploading Custom WOFF Fonts to WordPress

WordPress doesn't natively support font uploads through the media library (font files are blocked by default). Here's how to add your WOFF font to a WordPress site:

Via FTP/cPanel (most reliable): Upload the .woff file to your theme's /fonts/ directory (create it if it doesn't exist). Then add the @font-face declaration to your theme's style.css or a custom CSS file.

Via a plugin: Plugins like "Use Any Font" or "Custom Fonts" let you upload font files directly in the WordPress admin and generate the @font-face declarations automatically. These plugins internally handle what you'd otherwise do manually.

Via a child theme's functions.php: Enqueue the font file using wp_enqueue_style() pointing to your uploaded font path.

Before uploading, check the font's license. Some fonts restrict web embedding even for personal sites. Use the Font Metadata Viewer to read the license field directly from your WOFF file — it shows the full license text and embedding restrictions embedded in the font itself.

Check the Font License Before Publishing It on the Web

Web embedding is a specific use case that some font licenses restrict. Commercial fonts from Adobe Fonts or similar services are often licensed for desktop use, not self-hosted web embedding. Before adding a converted WOFF to your website, verify that your license covers web use.

The font file itself usually contains the license information. Load your TTF or WOFF file into the Font Metadata Viewer to read the embedded license text, license URL, and embedding permission flags. The embedding flag tells you whether the font allows print-and-preview, editable embedding, or no embedding at all — this is standard metadata that type foundries write into their font files.

Free-for-commercial-use fonts on Google Fonts, Font Squirrel (filtered for web use), and DaFont (licensed "free for commercial use") are safe to self-host and convert freely. When in doubt, check the license file that came with the font download.

Frequently Asked Questions

Does converting TTF to WOFF reduce quality?

No. WOFF is a compressed wrapper around the same font data as TTF. The glyph outlines, spacing, and all typographic information are preserved exactly. The only difference is the file size — WOFF files are 30-40% smaller because the font data is compressed.

Should I use WOFF or WOFF2 for my website?

WOFF2 is better if you can generate it — it's roughly 50% smaller than TTF, compared to WOFF's 30-40% reduction. The current tool converts to WOFF (which covers all browsers including IE9+). For WOFF2, use fonttools or Transfonter. Serving both in your @font-face declaration is the best practice: browsers use WOFF2 if they can, fall back to WOFF otherwise.

How do I host a web font without Google Fonts?

Download the font as TTF or OTF, convert it to WOFF using a browser-based converter, upload the WOFF file to your web server, and add a @font-face CSS declaration pointing to it. This gives you full control over font delivery without a third-party CDN dependency. The font file path in your CSS should be relative to the stylesheet or an absolute URL to your server.

Can I convert a WOFF back to TTF?

Yes. The font converter supports WOFF-to-TTF conversion as well. This is useful when you have a web font you want to install locally as a desktop font. Upload the WOFF file, select TTF as output, and download the desktop-compatible TTF.