Is this CSS @font-face generator free?

Yes, it is completely free to use. No registration or login required.

Which browsers does the generated @font-face code support?

The generated code works in all modern browsers: Chrome, Firefox, Safari, Edge, and Opera. WOFF2 format offers the best compression and compatibility. TTF/OTF formats support older browsers. The tool can output multiple formats for maximum browser compatibility.

Are my font files uploaded to a server?

No. All font file processing happens entirely in your browser using the JavaScript FileReader API. No data is uploaded to any server. The tool works offline too. You can safely process any font files, including commercial fonts.

What font formats does @font-face support?

WOFF2 (best — highest compression), WOFF (good compatibility), TTF/OTF (widely compatible but larger files), EOT (legacy IE only), SVG (obsolete). We recommend using WOFF2 as primary format with WOFF or TTF as fallback. This tool supports uploading TTF/OTF/WOFF and generating Base64-embedded CSS.

How do I optimize @font-face loading performance?

① Use WOFF2 format (30-50% smaller than TTF); ② Use font-display:swap to avoid FOIT (Flash of Invisible Text); ③ Subset your fonts (include only needed characters); ④ Preload critical fonts with <link rel=preload>; ⑤ Use unicode-range to specify character coverage. Our generated code includes font-display and optional unicode-range.

Free CSS @font-face Generator - Online Web Font CSS Gener...

❓ FAQs

What is @font-face and why do I need it?▼

@font-face is a CSS rule that allows websites to use custom fonts hosted on a server, without relying on locally installed fonts. It enables unique brand typography and design across all devices. This generator helps you quickly create cross-browser @font-face CSS code from your font files.

Base64-embedded vs external font files — what's the difference?▼

Base64 embedding: font data is directly included in the CSS file — no extra HTTP requests. Best for small fonts (<50KB). Pros: fewer requests. Cons: larger CSS file, can't be cached separately by the browser. External files: referenced via url(), ideal for larger fonts, independently cached. This tool supports both approaches.

What about font licensing and copyright?▼

Before using custom fonts, ensure you have proper licensing. Commercial fonts typically require a separate Web Font license. Free fonts (Google Fonts, Open Font Library) can be used freely. This tool only processes files you upload locally — nothing is uploaded or recorded by us. Always check the license of any font before using it on a website.

WOFF2 vs TTF — which should I use?▼

WOFF2 (Web Open Font Format 2) is specifically designed for the web with Brotli compression, typically 30-50% smaller than TTF. All modern browsers support WOFF2. TTF/OTF are desktop font formats with broader compatibility but larger file sizes. Best practice: use WOFF2 as primary format with TTF as fallback for older browsers.

What is font-display:swap?▼

font-display:swap controls custom font loading behavior. With 'swap', the browser displays text using a system font immediately (FOUT — Flash of Unstyled Text), then swaps to the custom font once it loads. This eliminates FOIT (Flash of Invisible Text) where users can't read content while fonts load. 'swap' is recommended for most websites and is our default setting.

🔤 CSS @font-face Generator

❓ FAQs