How to generate css background-image data uris from svg files
- Step 1Upload or paste your SVG — Drop your SVG file or paste the source. The tool validates the SVG structure and warns if attributes will cause encoding issues.
- Step 2Choose encoding format — URL-encoding is selected by default (recommended). Switch to base64 if your tooling specifically requires it.
- Step 3Copy the CSS snippet — Click Copy to get the complete background-image: url declaration. Paste it into your stylesheet.
Frequently asked questions
Why use URL-encoding instead of base64 for SVG data URIs?+
URL-encoding SVG leaves most alphanumeric characters unchanged and only encodes a few special characters, making it 5–15% smaller than base64 for typical SVG content.
Do I need to use single quotes inside the SVG for this to work?+
Yes. SVG attribute values must use single quotes inside a URL-encoded data URI. The tool automatically converts double-quoted SVG attributes to single-quoted format during encoding.
Can I use a data URI SVG in a CSS pseudo-element?+
Yes. Apply it to ::before or ::after with content: url(...) or as a background-image. For pseudo-element content URIs, set explicit width and height on the pseudo-element.
What tier is required?+
CSS Data URI generation requires a Pro subscription, which includes SVG validation and attribute normalisation.
Privacy first
Every JAD SVG tool runs entirely in your browser using the DOM API and Canvas. Your SVG files never leave your device — verified by zero outbound network requests during processing.