No upload, 100% local, no account

SVG optimizer

Paste or drop an SVG and shrink it with SVGO. Everything stays in your browser.

How SVG optimizer works

SVG optimizer runs your SVG file through SVGO, the industry-standard SVG optimization pipeline, and produces a smaller, cleaner SVG that renders identically. It removes editor metadata, redundant attributes, empty groups and unnecessary precision from path coordinates, typically cutting file size by 30–70% without any visible change.

It strips editor namespaces (Inkscape, Illustrator, Sketch), comments, hidden layers, unused definitions and excess decimal precision. A side-by-side preview lets you confirm the rare edge cases (complex filters, non-standard attributes) still render correctly.

Frequently asked questions

Are my files uploaded to a server?

No. Your SVG is optimized by SVGO running in your browser tab, the markup is read into memory on your own device, the optimization plugins rewrite it there, and the smaller SVG is shown and offered as a local download. Nothing reaches Sunasty or any third party. Open your browser's DevTools, go to the Network tab and watch: no request carries your file.

Will the optimized SVG look identical to the original?

In virtually all cases, yes. SVGO targets metadata and redundant structure, not rendering-relevant geometry. Rare edge cases exist (very complex filters, certain non-standard attributes) where you should preview the result, the tool shows a side-by-side comparison for this reason.

What kinds of data does SVGO remove?

Editor metadata (Inkscape, Illustrator, Sketch namespaces), comments, hidden layers, unused definitions, redundant group nesting, excessive decimal precision in path data, and default attribute values that are implied by the SVG specification.

Does it work offline?

Yes, once the page has loaded. Because the processing happens on your device, you can disconnect from the network and the tool keeps working. This is the clearest proof that your data never leaves your machine.

Is it free? Do I need an account?

It is completely free and requires no sign-up. There are no watermarks, no daily limits and no tracking cookies needed to use the tool.