Free Online SVG Cleaner & Minifier
Paste raw SVG markup — especially SVGs exported from design tools — to strip comments, editor metadata, and unwanted whitespace, leaving clean markup ready to drop into HTML or React. It helps frontend developers reduce inline SVG noise and file size before placing icons or illustrations in a production bundle.
Why SVGs need cleaning
SVG files exported from design tools like Inkscape, Illustrator, or Sketch are usually full of editor-specific metadata that has no visual effect but adds real file size: XML comments, a <metadata> block with Dublin Core/RDF information, and namespaced attributes like inkscape:label or sodipodi:type that only the originating tool understands. None of it affects how the SVG renders, but it does bloat the file and clutter the markup if you're pasting it directly into your codebase.
How to use this cleaner
Paste your raw SVG markup and click Clean & Minify. The tool parses it as XML, removes comments and metadata elements, strips editor-specific namespaced attributes, and collapses unnecessary whitespace — the result is valid, renders identically, and is meaningfully smaller.
Common use cases
- Preparing a design-tool-exported icon for inline use in a React component or HTML file
- Reducing SVG file size before embedding it as a data URI
- Cleaning up markup before committing an SVG asset to a codebase
How to use SVG Optimizer for related tasks
Paste SVG, optimize it, and inspect the output for removed editor metadata, whitespace, or attributes that your rendering pipeline still needs.
Related tools: Image Resizer / Cropper, Favicon Generator.
Frequently asked questions
What gets removed when I clean an SVG?
Comments, <metadata> elements (typically containing RDF/Dublin Core data no browser renders), and attributes in editor-specific namespaces like inkscape:*, sodipodi:*, and sketch:* — all of which are safe to remove since they have no visual effect and exist only for the original editing tool.
Will cleaning change how my SVG looks?
No — everything removed is invisible metadata or editor bookkeeping that browsers don't render. The visible shapes, paths, and styling are left untouched.
Is my SVG uploaded anywhere?
No — parsing and cleaning happen entirely in your browser using the native DOMParser and XMLSerializer APIs. Nothing you paste is sent to a server.
Can I use the output directly in React or HTML?
Yes — the cleaned output is standard SVG markup, safe to paste directly into an HTML file or as inline JSX in a React component.
Can SVG optimization change how an image renders?
Yes. Removing metadata is usually safe, but aggressive cleanup can affect IDs, styles, dimensions, or accessibility labels; inspect the result.