Encode Images to Base64 for CSS

Convert small images and icons to Base64 data URLs for embedding directly in CSS or HTML.

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Text to encode

CSS tips

🎨

Embed small SVG icons, favicons, or background images directly in your CSS as data URLs to eliminate extra HTTP requests.

📏

Only embed images under ~5 KB as Base64. Larger images increase CSS file size significantly and are better served as separate files.

💡

Base64 images in CSS look like: background-image: url("data:image/svg+xml;base64,PHN2Zy4uLg=="). Paste your encoded output after the comma.

⚡

For SVGs specifically, URL-encoding the raw SVG source is often more compact than Base64 — compare both before choosing.

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Enter your data into the tool above. Everything stays local to your browser.

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The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

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