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Base64 to SVG Converter

Decode Base64 strings and Data URIs into clean SVG markup online. Render vector graphics in real-time, inspect XML source, and download .svg files directly in your browser.

182 chars

Text input and uploads are limited to 10 MiB. Binary image files are not encoded as raw bytes.

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What you can do with Base64 Encoder & Decoder

  • Decode base64 string
  • Encode text as base64

How this encoding and decoding works

Decode Base64 strings and Data URIs into clean SVG vector markup with interactive visual rendering.

Example input

data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxMDAgMTAwIj48Y2lyY2xlIGN4PSI1MCIgY3k9IjUwIiByPSI0MCIgZmlsbD0iIzAyODRhYyIvPjwvc3ZnPg==

Example output

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
  <circle cx="50" cy="50" r="40" fill="#0284ac"/>
</svg>

Practical workflow

  1. Paste your raw Base64 string, CSS background data-URI url(), or data:image/svg+xml;base64 payload directly into the input editor.
  2. Verify that the tool is set to Decode mode and click Convert to parse the encoded byte stream into human-readable XML markup.
  3. Inspect the interactive SVG Visual Preview canvas to confirm path geometries, viewBox coordinates, and styling render properly.
  4. Copy the sanitized SVG code or click Download .svg to save the vector graphic locally to your device.

Common use cases

  • Extracting inline vector icons embedded inside CSS background-image declarations or stylesheet data URIs.
  • Inspecting and debugging Base64-encoded SVG payloads returned by REST or GraphQL graphics generation APIs.
  • Exporting web-embedded vector logos into standalone .svg files for editing in Figma, Illustrator, or Inkscape.

Important notes and limitations

  • Decoding runs 100% locally client-side via native browser Web APIs; your private vectors and design assets are never transmitted to external servers.
  • Base64 encoding increases payload size by approximately 33% compared to raw SVG text; converting back to standalone .svg eliminates transfer bloat.
  • Preview rendering sandboxes SVG content in an isolated image context to protect against inline script execution or XML entity vulnerabilities.

Continue your workflow

Frequently asked questions

Can this converter handle both raw Base64 and data:image/svg+xml Data URIs?

Yes. The decoder automatically recognizes full Data URI prefixes, CSS url() wrappers, and raw Base64 strings, extracting and parsing only the vector payload.

Is it safe to preview decoded SVG files in this browser tool?

Yes. The visual preview utilizes an isolated blob image element that prevents malicious scripts, event handlers, or external network requests embedded in the SVG from running.

Why should I convert embedded Base64 strings back into standalone SVG files?

Standalone SVG vector files can be compressed with gzip or brotli, shared across design tools like Figma, cached independently by CDNs, and edited directly as XML.

Focused guides for this tool