Compare Web Open Font Format and Scalable Vector Graphics formats — understand the key differences and when to use each
Web Open Font Format
WOFF (Web Open Font Format) is a compressed font format designed specifically for web use. WOFF wraps TrueType or OpenType font data with metadata and ZLIB compression, typically reducing font file sizes by 40%. WOFF is supported by all modern browsers and is the W3C standard for web fonts.
Scalable Vector Graphics
SVG (Scalable Vector Graphics) is an XML-based vector image format developed by the W3C. Unlike raster formats (JPG, PNG), SVG describes images using mathematical paths, shapes, and text, allowing them to scale to any size without quality loss — from a tiny icon to a billboard. SVG supports styling via CSS, animation via SMIL or JavaScript, interactivity, accessibility features, and embedded fonts. SVG files are typically much smaller than raster equivalents for logos, icons, and illustrations. Because SVG is text-based, it can be indexed by search engines, edited in any text editor, and manipulated with JavaScript in web applications. SVG supports filters, gradients, patterns, clipping, and masking. It's the standard format for web icons, logos, data visualizations (D3.js, Chart.js), and responsive graphics. All modern browsers natively render SVG.
| Feature | WOFF | SVG |
|---|---|---|
| Full Name | Web Open Font Format | Scalable Vector Graphics |
| File Extension | .woff | .svg |
| Category | font | image |
| Free to Convert | ✓ Yes | ✓ Yes |
| Browser Support | ✓ All Browsers | ✓ All Browsers |
| Convert to Each Other | ✓ Yes | ✗ No |
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