Does it rewrite the SVG?

No. This tool inspects and reports source details only.

Does it show comments?

It reports whether comments exist and how many were detected.

Yes. The JSON report is available in the output panel.

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Inspect SVG source length, comments, declarations, root attributes, and raw markup.

Inspect SVG source length, comments, declarations, root attributes, and raw markup.

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

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SVG Source Inspector summarizes SVG source length, comments, declarations, root attributes, and raw markup.

The inspector reports bytes, characters, line count, comments, XML declaration, doctype, and root SVG attributes.

Use it before cleanup, optimization, or manual edits when you need to understand the source-level structure of an SVG file.