Can I paste the full data URI?

Yes. The tool removes the data:image/svg+xml;base64 prefix before decoding.

Does Base64 decoding optimize the SVG?

No. It only decodes. Use SVG Optimizer afterward if you want a smaller file.

Yes. The decoded text must parse as SVG before results are shown.

Convert

Decode raw Base64 strings or Base64 SVG data URIs back into SVG markup.

Decode raw Base64 strings or Base64 SVG data URIs back into SVG markup.

Choose an SVG file, paste SVG markup, or load the sample to begin.

Page context

Base64 to SVG decodes raw Base64 strings or Base64 SVG data URIs back into SVG markup.

The tool accepts raw Base64 text and full data:image/svg+xml;base64 URIs.

Decoded bytes are read as UTF-8 so SVG files with Unicode text can round-trip correctly.