SVG to Base64 Encoder
Encode SVG markup as a Base64 string for APIs, JSON payloads, CSS, email templates, and embedded assets.
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What SVG Base64 encoding does
Base64 turns the SVG text into ASCII characters that can travel safely inside JSON, configuration files, or systems that do not accept raw XML.
Base64 adds roughly one third to the source size. Use it for small, self-contained assets rather than large illustrations.
This page returns the raw Base64 payload. Use the Data URI tool when you need a complete value beginning with data:image/svg+xml.
Frequently asked
How do I convert SVG to Base64?
Upload or paste the SVG. The browser encodes its UTF-8 bytes and returns the raw Base64 payload instantly.
Is Base64 smaller than SVG?
Usually not. Base64 is normally about 33 percent larger than the original text, but it is easier to embed in some data formats.
Does the encoder support Unicode text?
Yes. The SVG is encoded as UTF-8 first, so non-English text and symbols are preserved.
Use the SVG in your code
Choose the output that matches your HTML, CSS, framework, or raster-delivery workflow.