What is an SVG Data URL?
An SVG Data URL is a string of text that represents an entire vector image. Instead of linking to an external .svg file, you can "inline" the graphic directly within your code—most commonly inside a CSS background-image: url(...) declaration.
Benefits of Inlining SVGs
- Zero HTTP Requests: The image is part of the CSS/HTML file, eliminating the need for the browser to open a new connection to fetch the asset.
- Portable Components: If you're building a reusable UI component library, inlining SVGs makes your components self-contained.
- High DPI Clarity: Unlike raster formats (PNG/JPG), SVGs look perfectly sharp on any screen resolution from mobile to 5K monitors.
Common Pitfalls & Formatting
Standard SVG code contains characters that are technically invalid within a CSS URL (like double quotes or hashtags). Our tool automates the "Percent Encoding" required to make SVGs cross-browser compatible while keeping the output as readable as possible.
Manual vs Base64 Encoding
While you can Base64 encode an SVG, encoded SVG Data URLs using **UTF-8** strings (as used by this tool) are almost always significantly smaller. Since SVGs are text-based, standard URL encoding is more efficient than the binary-focused Base64 method.
Instruction: Using the Converter
Simply paste your raw <svg> code into the input box. The tool will instantly generate the data:image/svg+xml string. Use the Copy CSS button to get a ready-to-use background property snippet.