Why optimize SVG files?

SVG files exported from design tools like Figma, Illustrator, or Inkscape often contain considerable overhead: XML declarations, DOCTYPE headers, editor metadata, comments, and redundant whitespace. This tool removes that bloat instantly, reducing file size without changing how the SVG renders.

Optimization options explained

Option	What it removes	Typical savings
Remove XML declaration	`<?xml version="1.0"?>` header	~30–50 bytes
Remove DOCTYPE	`<!DOCTYPE svg …>`: not needed in inline or linked SVG	~100–200 bytes
Remove comments	All `<!-- … -->` comment nodes	Varies
Remove metadata	`<metadata>`, `<title>`, `<desc>` elements	Varies
Collapse whitespace	Newlines and indentation between tags; multiple spaces within tags	10–40% on formatted SVGs
Remove empty attributes	Attributes set to `""`: common from Illustrator exports	Small

Limitations

This tool performs safe, structural text optimizations only. It does not apply path simplification, attribute merging, or dead-code elimination. For maximum compression, pair it with gzip or Brotli compression at the server level.

SVGO comparison

SVGO is the Node.js command-line tool used in most build pipelines (Webpack, Vite, etc.). It goes far beyond what this browser-based optimizer does: SVGO can simplify and merge path data, collapse redundant groups, remove unreferenced IDs, convert shapes to paths, and reduce float precision. Use this tool for quick one-off optimization without a build step; use SVGO in your build pipeline for production assets that need maximum compression.

Typical savings by source tool

Source tool	Typical savings (this optimizer)	Notes
Figma export	10–30%	Metadata and comment removal; relatively clean exports
Adobe Illustrator	30–50%	Comments, DOCTYPE, and Illustrator-specific XML overhead
Inkscape	40–60%	Verbose RDF metadata and Inkscape namespace attributes
Sketch	10–20%	Minimal overhead; already fairly optimized exports

When NOT to remove the XML declaration

The XML declaration (<?xml version="1.0" encoding="UTF-8"?>) is safe to remove when the SVG is inlined in HTML or served with the correct image/svg+xml MIME type. However, if your SVG file is served as a standalone document by a misconfigured server that omits the MIME type, removing the XML declaration may prevent some older parsers from interpreting the file correctly. For SVGs embedded in <img> tags or CSS backgrounds on a properly configured server, removal is always safe.