ALLYX ONE
100% browser-based · zero uploads

SVG Optimizer

Optimize SVG files online for free — no sign-up, no uploads, nothing to install. Upload your SVG or paste the code, choose your options, and download a leaner file in seconds. Everything runs right in your browser, so your files never leave your device.

Drop your SVG file here, or browse

SVG files only · max 5 MB

Optimization options

How It Works

This free online SVG optimizer processes your files entirely in your browser — no upload is ever sent to a server.

  1. 1. Upload or paste your SVG

    Drop an SVG file onto the upload area, click to browse, or paste raw SVG markup directly into the code box. The file is read locally — nothing is transmitted anywhere.

  2. 2. Pick your optimizations

    Choose which clean-ups to apply. You can remove comments and metadata, strip editor data added by apps like Inkscape or Adobe Illustrator, drop attributes set to their default values, round long decimal numbers in path data, and remove elements that are invisible anyway. Every option is on by default, but you can toggle any of them off.

  3. 3. Optimize in your browser

    Hit Optimize SVG and your browser parses the markup, applies your chosen clean-ups in memory, and rebuilds a tighter SVG string — all without touching a server. The result is ready in milliseconds.

  4. 4. Download or copy the result

    See the before/after file size and savings percentage at a glance. Click Download .svg to save the optimized file, or Copy code to paste it straight into your project or design tool.

Why users love this tool

  • Your files never leave your device — the optimizer runs entirely in your browser, so there is nothing to intercept or store.
  • Results in milliseconds — because nothing is uploaded, optimization is instant even for complex illustrations.
  • Remove Inkscape and Illustrator bloat — design tools embed large amounts of editor-specific data that serves no purpose in production.
  • Copy-paste friendly — paste your SVG markup in and copy the optimized version straight back out, no file round-trip needed.
  • Completely free — no account, no watermarks, no limits.

Frequently Asked Questions

Is my SVG file uploaded to a server?

No. All optimization happens locally in your browser using the built-in DOMParser and XMLSerializer APIs. Your SVG file never leaves your device.

What optimizations does this tool apply?

The tool removes XML comments, metadata and descriptive elements (<metadata>, <title>, <desc>), editor-specific attributes and elements from Inkscape and Illustrator, empty and default attribute values, hidden elements, and rounds decimal numbers in path and transform data. Every option can be toggled on or off.

Will optimizing my SVG break the image?

The optimizations applied are all safe for rendering. Comments, metadata, and default attribute values have no effect on how an SVG looks. You can inspect the optimized code in the viewer before downloading.

Can I paste SVG code instead of uploading a file?

Yes. The text area below the upload zone accepts raw SVG markup directly — useful when you are copying code from a design tool or code editor.

Does the tool work on mobile?

Yes. The tool runs entirely in your browser and works on any modern device, including smartphones and tablets — no app or installation needed.