SVG Optimizer

What this tool does

SVG Optimizer runs SVGO, the industry-standard SVG optimizer used by most icon and build pipelines, entirely in your browser, stripping comments, metadata, editor-specific cruft and redundant attributes while preserving the exact visual rendering, with a before/after size comparison and side-by-side preview.

An SVG exported from a design tool (Figma, Illustrator, Sketch) is usually bloated with editor-specific metadata, comments, unnecessary precision and redundant attributes, none of which affect how it actually renders.

This tool runs SVGO, the industry-standard optimizer used by most icon libraries and build pipelines, directly in your browser, stripping all of that cruft while preserving the exact visual output, with a before/after comparison so you can confirm nothing visually changed.

How to use SVG Optimizer

1. Upload an .svg file, or paste SVG markup directly.
2. Compare the original and optimized previews side by side.
3. Check the size reduction percentage.
4. Copy or download the optimized SVG.

Tips for better results

• SVGO’s default optimizations are designed to be visually lossless, the optimized SVG should render pixel-for-pixel identically to the original, always verify this with the side-by-side preview before replacing your original file.
• Design tool exports commonly include an entire editor-specific metadata block, comments, and excessive coordinate decimal precision that contributes nothing to the actual rendering, which is exactly what gets stripped.
• For an icon set used repeatedly across a site, running every icon through an optimizer like this before deployment is a meaningful, easy performance win with essentially no visual risk.
• If an optimized SVG does look visually different from the original, that’s worth reporting as unusual, SVGO’s default settings are specifically tuned to avoid any visual changes under normal circumstances.

Common use cases

• Shrinking SVG icon files exported from a design tool before deploying them to a website.
• Cleaning up SVG markup copied from an online source that includes unnecessary editor metadata.
• Reducing the file size of a batch of SVG assets for faster page loads.
• Verifying an SVG optimizer’s output renders identically to the original before trusting it in production.

Common mistakes to avoid

• Not checking the side-by-side preview before replacing a production file, while SVGO’s defaults are designed to be visually lossless, always confirm the specific file in question actually looks identical before and after.
• Assuming every SVG will shrink dramatically, a file that was already clean and well-optimized (hand-written or from a well-configured export) may see a much smaller reduction than a bloated design-tool export.
• Running this on an SVG that intentionally includes metadata you need to keep (like accessibility <title>/<desc> tags for screen readers), SVGO can remove these by default, check the output preserves anything you specifically need.