SVG to Data URI Converter
Convert SVG markup into an optimized URL-encoded data URI for use in CSS background-image, HTML img and JS, avoiding base64 bloat. Copy-ready output. Private.
Last reviewed by the Radiatus Cloud team
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Turn SVG into a data URI
An SVG can be embedded directly in CSS as a data URI, avoiding a separate file request. This tool converts SVG markup into an optimised URL-encoded data URI, ready to use in a CSS background.
Why a data URI helps
Embedding an SVG as a data URI in CSS means the image loads with the stylesheet rather than as a separate network request, which can be faster for small icons and shapes and keeps everything in one place. But SVG contains characters that must be encoded to sit safely inside a CSS value, and doing that by hand is fiddly. The tool URL-encodes the SVG optimally, producing a data URI that works reliably in a background property. This is the standard way to inline small SVGs in CSS without managing separate files.
Inline SVG in CSS
It runs entirely in your browser, so nothing you paste is uploaded and the result is yours to copy straight into a project, which lets you work on private code and data without anything leaving your machine.
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Frequently Asked Questions
What is an SVG data URI?
The SVG encoded into a string that can be placed directly in CSS, so the image is embedded in the stylesheet rather than loaded as a separate file.
Why embed SVG in CSS?
To avoid a separate network request for small icons and shapes, which can be faster and keeps the styling self-contained.
Why does the SVG need encoding?
Because it contains characters that must be URL-encoded to sit safely inside a CSS value. The tool encodes it optimally so the data URI works reliably.
When should I use this?
For small SVG icons and shapes used in CSS backgrounds, where inlining avoids managing a separate file. Large SVGs are better as files.
Is my SVG uploaded?
No. The conversion runs entirely in your browser.
Privacy & Security
All processing happens locally in your browser — nothing is uploaded.
How to Use
Paste your SVG code; the data URI and a ready-to-use CSS snippet are generated.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.
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