SVGOMG: Optimize & Minify SVG Files Online
Reduce vector graphics file sizes by up to 80% without losing quality. Strip editor bloat, round coordinate decimals, clean metadata, and copy minified markup or CSS Data URIs.
How to Optimize SVG Graphics in 3 Steps
Load Your Vector Graphic
Drop any .svg file into the workspace, click Open SVG, or paste raw XML markup directly into the editor.
Adjust Precision & Rules
Use the coordinate slider to tune decimal places and toggle cleanup filters. The visual preview updates instantly.
Copy or Download Clean Code
Click 'Copy SVG' for your HTML templates, grab a CSS Data URI, or download the minified file with one click.
Why Optimizing SVG Files Matters for Web Performance
Scalable Vector Graphics (SVG) are the gold standard for web iconography, logotypes, and crisp illustrations. However, vector graphics exported directly from vector editors contain substantial hidden baggage.
How Design Tools Bloat SVG Code
Applications such as Adobe Illustrator, Figma, Inkscape, and Sketch are designed for offline editing. When saving an artwork as an SVG, they inject non-standard namespaces (like xmlns:sketch or sodipodi), XML metadata, raster thumbnail previews, and coordinate floating-point decimals with up to 10 decimal digits (e.g., 45.1234567891).
This extraneous syntax often makes up 40% to 80% of the total file weight without adding a single pixel of visual fidelity. On web apps delivering hundreds of UI icons, this bloat directly degrades Core Web Vitals (LCP & CLS) and inflates DOM parsing time.
The Magic of Coordinate Decimal Rounding
Coordinates like M 12.3847291 95.8472910 require 28 bytes of ASCII characters. Rounding this path to 2 decimal places yields M 12.38 95.85, reducing that specific segment to 13 bytes—a massive 53% reduction on path definitions alone. Because human eyesight cannot perceive fractional-pixel deviations smaller than a hundredth of a CSS pixel on modern displays, rounding delivers imperceptible visual change with massive byte savings.
CSS Data URIs vs Inline SVGs
Using SVG code directly inside CSS background properties (e.g., background-image: url('data:image/svg+xml,...')) eliminates separate HTTP round-trips for small icons. Our built-in Data URI generator automatically URL-encodes special characters so your icons render seamlessly across all evergreen web browsers.
SVG Optimization Rules & Typical Savings Matrix
Reference table of key optimization passes performed by SVGOMG and their typical byte impact:
| Optimization Rule | Description | Typical Savings | Visual Impact |
|---|---|---|---|
| Coordinate Rounding | Truncates path coordinates to 2 or 3 decimal places | 30% - 50% | Zero perceptible change |
| Strip XML & DOCTYPE | Removes <?xml...> and DTD schema headers | 5% - 15% | Safe for inline & web use |
| Remove Comments & Metadata | Strips Adobe/Figma generator tags and RDF blocks | 10% - 30% | None (purely non-visual) |
| Clean Empty Attributes | Removes id="", class="", and unreferenced groups | 5% - 10% | None (cleans DOM tree) |
| Minify Hex Color Codes | Converts #ffffff to #fff and collapses color names | 2% - 5% | Exact visual equivalence |
Frequently Asked Questions
Yes, 100%. All optimization logic runs directly inside your browser using JavaScript. No files, vector shapes, or code are ever uploaded to any cloud server.
For standard icons and graphics, 2 or 3 decimal places preserves exact fidelity. For ultra-intricate architectural diagrams or tiny map paths, you can slide the precision slider up to 4 or 5 decimals to guarantee exact curve accuracy.
Yes. CSS keyframe animations and SMIL tags (such as <animate> and <animateTransform>) are preserved cleanly while redundant metadata around them is stripped away.
Simply click the 🔗 Copy Data URI button in the top action bar. You can paste the resulting string directly into your stylesheet as background-image: url("data:image/svg+xml,..."); without needing an external image asset.