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Convert SVG to CSS background data URI. Use for inline icons; for image files use image-to-base64. Input: SVG ≤10MB. Returns CSS url(). 100% client-side, files never leave browser.
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Converts SVG markup to CSS values for background-image, mask-image, inline SVG (content property), and clip-path modes. Supports URL-encoded and base64 encoding, applies optimization before conversion, shows a live preview of the rendered result, and compares byte sizes of the original SVG, URL-encoded, and base64 versions.
Embedding SVGs in CSS requires proper encoding and wrapping for each CSS property. This tool automates the conversion so developers can use SVGs in stylesheets without manual string manipulation.
This tool is part of the DevStackIO platform — a collection of free online developer tools from DevStackIO. Browse more free developer resources on DevStackIO.
Frontend developers, CSS authors, and UI engineers who embed vector graphics as CSS background images, masks, or clip-paths.
Paste SVG markup into the input area — it will automatically be optimized in the preview pane.
Select the output mode: background-image, mask-image, inline (content), or clip-path.
Choose encoding: URL-encoded (smaller, human-readable) or base64 (binary-safe, larger).
Review the live preview showing the CSS-rendered SVG on a sample element.
Check the size comparison table showing original bytes vs. URL-encoded bytes vs. base64 bytes.
Click Copy CSS to copy the generated CSS declaration(s) to your clipboard.
Input: <svg viewBox="0 0 24 24"><path d="M12 2L2 22h20z"/></svg> with background-image mode and URL encoding → output: background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2L2 22h20z'/%3E%3C/svg%3E");Input: same SVG with mask-image mode and base64 encoding → output: mask-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCI+PHBhdGggZD0iTTEyIDJMMiAyMmgyMHoiLz48L3N2Zz4=");What is the smallest encoding?
URL-encoding is typically 5–15% smaller than base64 for most SVGs.
Can I use this for SVG sprites? No
this tool is for individual SVGs; use an SVG sprite generator for multiple icons.
Does clip-path support all SVG paths? clip-path uses only the path's geometry
fill, stroke, and colors are ignored.
Will animations inside the SVG work? No
CSS background-images and masks do not render SVG animations.
Authoritative specifications, standards, and in-depth reading for SVG to CSS Converter.
.svg-icon {
width: 24;
height: 24;
background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2224%22%20height%3D%2224%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22currentColor%22%20stroke-width%3D%222%22%3E%3Ccircle%20cx%3D%2212%22%20cy%3D%2212%22%20r%3D%2210%22%2F%3E%3Cpath%20d%3D%22M12%206v6l4%202%22%2F%3E%3C%2Fsvg%3E");
background-size: contain;
background-repeat: no-repeat;
}Embed raster images as SVG. Use when needing SVG wrappers; for optimizing vectors use svg-optimizer. Input: image ≤10MB. Returns SVG. 100% client-side, files never leave browser.
Minify SVG by stripping metadata and whitespace. Use for smaller vectors; for raster use image-compressor. Input: SVG ≤10MB. Returns optimized SVG. 100% client-side, files never leave browser.
Create animated GIF from images. Use when animating frames; for collages use image-collage. Input: images ≤10MB. Returns GIF. 100% client-side, files never leave browser.
Compress JPEG, PNG, and WebP images in your browser. Reduce file size without visible quality loss.
Resize images by width/height or percent. Use when dimensions must change; for smaller files use image-compressor. Input: image ≤10MB. Returns resized PNG/JPEG/WebP. 100% client-side, files never leave browser.
Generate favicons (16/32/180 PNG + ICO) from one image. Use for site icons; for compression use image-compressor. Input: image ≤10MB. Returns favicon set + HTML. 100% client-side, files never leave browser.
Generate placeholder images by size and text. Use for mockups; for editing photos use image-resizer. Input: dimensions + options. Returns PNG download. 100% client-side, files never leave browser.
Read EXIF metadata (camera, GPS, settings). Use when inspecting photos; for moving EXIF use exif-transfer. Input: JPEG/TIFF ≤10MB. Returns metadata table. 100% client-side, files never leave browser.