How does the client-side SVG Optimizer work?

ZeroPNG runs the popular SVGO (SVG Optimizer) engine directly in your web browser. When you drop an SVG, it parses the XML elements and applies optimization plugins to strip metadata, clean paths, remove empty groups, and reduce precision, all without sending your SVG to any server.

What optimization presets are available?

We offer three presets: Default (recommended for standard use, cleans markup safely), Aggressive (removes width/height to force viewBox responsiveness, aggressively simplifies paths), and Prettify (optimizes the SVG structure but formats output XML with neat indentation for reading).

Is it safe to optimize SVG files here?

Yes, entirely. Like all ZeroPNG tools, the SVG Optimizer runs 100% locally on your computer. Your vector files are processed inside your browser's sandbox and are never uploaded or stored.

Tool

SVG Optimizer

Minify, clean, and optimize SVG vector assets. Strip metadata, editor namespaces, comments, and unused code. Preview visual results and XML code diff side-by-side.

No uploadsNo trackingInstant minificationIn-browser SVGO engine

Drop SVG files here

SVG only · Max 10 MB per file

SVG

How it works

Minify SVG files in three steps

Clean XML tags, reduce floating point path precision, and optimize attributes without complex setups.

Drop your SVG files

Upload single or batch SVG files from your desktop. All file reading is executed locally inside your web browser.

.svg

Pick a preset

Choose the Default configuration for balanced stripping, Aggressive to remove dimensions and scale shapes responsive, or Prettify to keep code readable.

DefaultAggressivePrettify

Inspect & Download

Check the visual comparison slider or inspect the precise code line differences before downloading. Compile output to a ZIP archive.

Visual SliderCode DiffZIP Export

FAQ

Frequently asked questions

Common questions about browser-based SVG cleaning and performance optimization.

No uploads, zero server tracking

Visual rendering validation slider

XML code structure inspector

What is SVGO and why is it useful?

Why run SVG optimization client-side in the browser?

What is the difference between Default and Aggressive presets?

Can optimizing an SVG break its visual rendering?

Do optimized SVGs load faster on a website?

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