SVGKit
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SVG to Data URI

Convert

Convert SVG markup into URL-encoded data URIs and CSS background-image snippets.

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Where SVG to Data URI fits

SVG to Data URI converts SVG markup into a URL-encoded data URI and a ready-to-copy CSS background-image snippet.

Best use cases

Use data URIs for small icons, CSS backgrounds, demos, documentation snippets, and single-file prototypes. Each embedded copy saves a network request at the cost of HTML or CSS size.

Size trade-offs

A data URI usually shrinks a small icon's total payload by removing the request overhead, but large SVGs embed better as separate files that the browser can cache independently.

A translation between formats Source PNG · JPG · WEBP PDF · SVG · EPS parsed locally rules of the target Target standards-based output, previewed before export no server round-trip Formats differ in what they can represent — differences concentrate in gradients, filters, and interactivity.
Conversion is a translation between formats: SVG to Data URI preserves what the target format can represent and previews it before export.
A source document translated into a target document through format rules, illustrating how SVG to Data URI converts locally without a server round-trip.

Encoding policy

The converter validates the SVG and URL-encodes characters that commonly break CSS or HTML embedding. URL encoding also stays human-readable, unlike Base64.

Caching and updates

Embedded SVGs update only when the surrounding HTML or CSS changes. Keep the source SVG under version control and regenerate the URI on change.

How the conversion works

SVG to Data URI parses the input in your browser, applies the target format's rules, and produces standards-based output without a server round-trip. The page shows the result before you commit to it.

What to expect from the output

Formats have different capabilities, so conversion is a translation rather than a perfect copy. Check dimensions, colors, and any interactive features in the preview, since those are the areas where formats differ most.

How to use

  1. Paste SVG. Paste valid SVG markup.
  2. Choose compact mode. Optionally compact whitespace before encoding.
  3. Pick the snippet. Use the raw data URI or the ready CSS background snippet.
  4. Copy output. Copy the data URI or CSS snippet.

Frequently asked questions

Is URL encoding better than Base64?
For SVG, URL encoding is often shorter and easier to inspect than Base64.
Can I use the output in CSS?
Yes. The tool provides a CSS background-image snippet.
Does it optimize first?
No. Optimize separately if you want the shortest output.
When should I not embed?
Large artwork, reused images, and assets needing independent caching belong in separate files.
Why is my background not showing?
Data URIs in CSS need the characters that terminate url() to be encoded — the tool handles this; check that the snippet was copied whole.
Is the data URI safe?
The input is validated before encoding, and scripts in the source SVG stay inert in CSS contexts.
Does encoding change rendering?
No. Encoding rewrites how the bytes travel, not what they draw.
Is SVG to Data URI free?
Yes. SVGKit tools are free to use with no account required.