QuickTooly
Free Tool

Free Online SVG Optimizer & Minifier

Compress and minify SVG files by 40–80% without any visual quality loss. Remove editor metadata, comments, and redundant markup — or run full path optimisation for maximum savings. No uploads, no registration, runs entirely in your browser.

Your SVG Optimizer

Drag and drop your SVG files or click to select them. Choose a preset — Safe, Balanced, or Aggressive — then download the optimised files individually or all at once.

Loading optimizer…

Last updated: May 17 2026

Reviewed by the QuickTooly Team

SVG Optimization Guide

What Is SVG Optimization and Why Does It Matter?

When design tools like Figma, Illustrator, or Inkscape export SVG files, they include a significant amount of unnecessary markup: editor metadata, comments, unused namespace declarations, redundant group elements, and verbose coordinate notation. A typical exported SVG is 2–4× larger than it needs to be. Optimising removes all of this dead weight — the visual output is pixel-identical, but the file size drops by 40–80%, improving page load speed, reducing bandwidth costs, and making the code cleaner.

Optimization Presets Explained

Safe Preset

Removes only metadata that is never rendered: XML processing instructions, DOCTYPE declarations, editor-specific namespace data (Illustrator, Inkscape), and comments. IDs, paths, and structural elements are left completely untouched. Typical savings: 5–15%. The right choice when the SVG is referenced externally (e.g. sprite sheets, CSS background-image) or contains user-defined IDs that JavaScript or CSS targets.

Balanced Preset (Recommended)

Applies the full SVGO preset-default pipeline with two cautious overrides: viewBox is preserved (required for responsive scaling) and IDs are not minified (safe for external CSS/JS references). This preset cleans up numeric precision, collapses redundant groups, converts shapes to more compact representations, merges compatible paths, and minifies inline styles. Typical savings: 30–60%.

Aggressive Preset

Runs every available optimisation including ID minification and <title> / <desc> removal. Best for standalone icon SVGs that are inlined directly into HTML and have no external references. Typical savings: 50–75%. Not recommended if CSS or JavaScript targets element IDs by name.

How to Optimise an SVG — 3 Steps

Step 1: Upload Your SVG Files

Drag and drop one or more .svg files onto the upload area, or click "Select SVG Files" to browse. There is no limit on the number of files — batch optimisation runs all files simultaneously.

Step 2: Choose a Preset

Select Balanced for most use cases. If the SVG is part of a sprite sheet or JavaScript references its IDs, use Safe. For standalone inlined icons where maximum file savings are the priority, choose Aggressive. Fine-tune individual plugins in the Advanced options panel.

Step 3: Optimize and Download

Click "Optimize SVGs" to process all files. Each file shows its original size, optimised size, and percentage saved. Download files individually or click "Download All" to grab them in one go. All processing happens in your browser — nothing is sent to any server.

Frequently Asked Questions

Will optimising an SVG change how it looks?

No — for the Safe and Balanced presets. SVGO's transforms are mathematically equivalent: translate(10,10) scale(2) and an inlined matrix produce identical rendering. The only visual risk comes from the two optional toggles labelled with a warning: removing viewBox (which can break responsive scaling) and cleaning up IDs (which can break CSS or JS references). Both are off by default.

How much smaller will my SVG get?

It depends on how the SVG was exported. Figma and Illustrator exports typically save 30–60% on the Balanced preset. Hand-coded SVGs may only save 5–15%. Highly complex path data (e.g., traced illustrations) can sometimes reach 70–80% savings with the Aggressive preset.

Is it safe to use the "Clean up IDs" option?

Only when the SVG is self-contained. If your CSS has rules like #myIcon path or your JavaScript calls document.getElementById('myShape'), those references will break when IDs are minified to short hashes. For inline icons where no external code targets specific IDs, it is safe to enable.

Does this tool upload my SVG files?

No. The entire optimisation pipeline runs in your browser using the SVGO library compiled to JavaScript. Your files never leave your device and are not stored anywhere.

Can I optimise animated SVGs?

Yes, with the Safe or Balanced preset. Aggressive optimisation can occasionally alter animation timing or break CSS-targeted elements within animated SVGs, so use it with caution and verify the output renders correctly before deploying.

What is SVGO?

SVGO (SVG Optimiser) is an open-source Node.js/browser library maintained by the SVG community. It applies a configurable pipeline of transforms — from whitespace removal to advanced path simplification — to reduce SVG file size without changing the rendered image. It is the engine behind most professional SVG build tooling, including webpack loaders, Vite plugins, and design-tool export workflows.

More Free Image Tools

Start Optimising Your SVGs Today

Upload your SVG files above and see the savings immediately. Whether you're optimising icons for a design system, compressing logos for a marketing site, or cleaning up illustrations for a product page — QuickTooly's SVG Optimizer makes it instant, free, and completely private.