SVG Optimizer

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Clean and shrink SVG files in seconds. Strip editor metadata, comments, and unused data, round coordinates, and make icons responsive, with a live preview and before and after byte counts.

Original: 0 B Optimized: 0 B Saved: 0%
Original
Optimized

Runs in your browser. Your artwork is never uploaded.

How the SVG Optimizer Works

  1. Paste your SVG, straight from Illustrator, Figma, Sketch, or any export.
  2. It parses the XML, building a real SVG document in the browser.
  3. It cleans and rounds, removing metadata and trimming long decimals.
  4. Copy or download, grab the smaller file and see how much you saved.

Why Optimizing SVG Matters

  • Faster pages, smaller SVGs reduce bytes on critical icons and logos.
  • Cleaner code, inline SVG is easier to read and style without editor cruft.
  • Responsive icons, removing fixed dimensions lets SVGs scale with CSS.
  • Better Core Web Vitals, lighter assets help LCP and overall load time.

Trimming SVGs is one small win in a much bigger picture, and squeezing every asset for speed is exactly what our website speed and performance optimization work is built around.

What SVG Optimization Removes

Design tools export SVGs with extra data that browsers do not need to draw the image. Removing it produces a smaller, cleaner file that renders identically. This is the same asset-by-asset care behind our website speed and performance optimization service.

Removed Why it is safe Note
Editor metadata and namespaces Inkscape, Illustrator, and Sketch add data only their editors use. Often the single largest source of bloat.
XML comments Comments are never rendered and add transfer weight. Removed outside of any meaningful data.
Hidden and empty elements Empty groups and invisible layers draw nothing. Confirm with the live preview before deploying.
Excess decimal precision Coordinates like 12.0000001 exceed what is visible. Rounding to 2 or 3 decimals is usually imperceptible.
Unused defs and ids Definitions and ids that nothing references add no value. Keep ids if CSS, JS, or sprite use references rely on them.

Savings are qualitative and depend on the source. Exports straight from design tools shrink the most, while hand-written or already-cleaned SVGs gain less. Always verify animated or scripted SVGs after optimizing.

Next steps

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SVG Optimizer: FAQ

What does this SVG optimizer remove?
Depending on the selected options, it removes XML comments and metadata elements, Inkscape and Sodipodi nodes and namespace attributes, data-name attributes, and empty group or defs elements. It also compresses whitespace between serialized elements.
What does Decimal precision change?
It rounds decimal numbers throughout the serialized SVG to the selected 0 to 3 decimal places. Lower precision can reduce size but may visibly shift detailed paths, transforms, gradients, or other numeric values, so inspect the preview.
Does it remove unused definitions, IDs, or CSS classes?
No. It removes a defs element only when it is empty, and it keeps non-empty definitions, IDs, classes, and styles. More aggressive reference-aware cleanup requires a dedicated SVG optimization pipeline and visual regression testing.
What happens when Remove width and height is enabled?
Only the root SVG's width and height attributes are removed; its viewBox is left intact if one exists. A viewBox usually lets the SVG scale responsively, but an SVG without one may size unexpectedly after this change.
Why does the output say Invalid SVG?
The browser's XML parser could not parse the input as well-formed SVG/XML. Fix malformed tags, quotes, or namespaces and try again; the tool does not repair invalid markup automatically.
How are the original size and savings calculated?
They are UTF-8 byte sizes of the input and optimized text. If optimization makes the file larger, the displayed saved percentage is clamped to zero, so compare the before and after byte values as well.
Is the preview a complete rendering and security test?
No. The preview runs in a sandboxed frame with external loading and scripts blocked. It is useful for a visual spot-check, but it does not validate accessibility, browser compatibility, references to external assets, or every embedding context.
Is my SVG uploaded or stored?
No. Parsing, cleanup, preview generation, copying, and downloading all happen in your browser. The SVG source is not submitted by this tool.

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