How to Optimize SVG Files Online
Reduce SVG file size by removing unnecessary metadata, comments, and editor artifacts with our free SVG Optimizer. Produces clean, lean SVG code.
Steps
Upload your SVG file
Upload your SVG file. SVGs exported from design tools like Illustrator, Figma, or Inkscape contain significant amounts of extra data: editor metadata, comments, default values, and verbose attribute notation that is not needed for rendering.
Choose optimisation options
Select which optimisations to apply. Safe optimisations (enabled by default) include: removing comments, removing hidden elements, removing default attribute values, merging identical paths, and converting shapes to paths. More aggressive options include removing the viewBox (check this is safe for your use case) and removing accessibility attributes (do not remove these if your SVG needs to be accessible).
Preview the result
The tool shows a visual preview of the optimised SVG next to the original to confirm the optimisation has not changed the appearance. Check that colours, shapes, and positions are identical. Also review the reduction in file size and code size.
Inspect the cleaned code
Switch to the code view to see how the SVG markup was simplified. An SVG that was 15KB of verbose Illustrator export may reduce to 3KB of clean, readable code — smaller files load faster and are easier to work with in CSS and JavaScript.
Download or copy the optimised SVG
Download the optimised SVG file or copy the SVG code to paste directly into your HTML (inline SVG). Inline SVGs can be styled and animated with CSS and manipulated with JavaScript.
Why SVG Files Need Optimisation
SVG (Scalable Vector Graphics) files are XML-based, which means they are plain text and perfectly readable by humans and machines. When a designer exports an SVG from a tool like Adobe Illustrator, the exported file contains far more than the visual information needed to render the image. Illustrator embeds its own proprietary metadata in special XML namespaces, a full representation of the artboard and layer structure, exact Illustrator version information, editing history artifacts, and verbose attribute notation where shorthand would work (transform='matrix(1,0,0,1,0,0)' instead of transform='translate(0,0)'). None of this is needed in the final web SVG — removing it produces an identical visual result with 40–70% less code.
Frequently Asked Questions
SVG files exported from Illustrator are notoriously bloated and typically see 40–60% size reduction from optimisation. Figma exports are cleaner but still see 20–30% reduction. Inkscape files vary. The biggest gains come from removing editor metadata (Illustrator stores its own proprietary data in SVG comments and namespaces), removing default attribute values (fill='black' is equivalent to no fill attribute), and simplifying path data (reducing decimal precision from 6 decimal places to 2).
Inline SVG (<svg> directly in HTML) allows CSS styling and JavaScript manipulation, enables hover state colour changes, and is the best approach for icons and illustrations that need to integrate with your design system. However, inline SVG is not cached by the browser, increases HTML file size, and cannot be lazily loaded. Img tag (<img src='icon.svg'>) caches like any image, is simpler in HTML, but cannot be styled with CSS (you cannot change icon colour on hover without a filter workaround). Use inline SVG for interface icons, img tag for standalone illustrations.