DevBolt
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How do I optimize and minify SVG files online?

Paste your SVG code or upload an SVG file and the tool removes metadata, editor data, comments, and unnecessary attributes to reduce file size. See a before/after comparison with size reduction percentage and a live preview. Everything runs in your browser — your SVGs never leave your device.

Remove unnecessary attributes
Input
<svg xmlns="http://www.w3.org/2000/svg"
  width="100" height="100"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  version="1.1">
  <circle cx="50" cy="50" r="40"
    fill="#ff0000" stroke="#000000"
    stroke-width="2"/>
</svg>
Output
<svg xmlns="http://www.w3.org/2000/svg"
  width="100" height="100">
  <circle cx="50" cy="50" r="40"
    fill="red" stroke="#000"
    stroke-width="2"/>
</svg>
Saved: 18% smaller
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SVG Optimizer & Viewer

Optimize SVGs by removing metadata, comments, editor cruft, and unnecessary attributes. Preview before and after.

Drop an SVG file here or click to browse

SVG files — max 5 MB

Optimization Options
About SVG Optimization

SVG files exported from design tools like Illustrator, Inkscape, Figma, and Sketch often contain metadata, editor-specific attributes, comments, and other unnecessary data that increase file size without affecting the visual output.

What gets removed:XML comments, metadata elements (RDF, Dublin Core), editor namespaces and attributes (Inkscape, Illustrator, Sodipodi), empty groups and defs, default attribute values (fill-opacity="1", display="inline", etc.), and redundant whitespace.

Safe optimization: This tool only removes data that does not affect how the SVG renders. All visual elements, gradients, filters, and transformations are preserved. Use the preview to verify the output before downloading.

Responsive SVGs:Enable "Remove width/height" to strip fixed dimensions while keeping the viewBox attribute, making your SVG scale responsively to its container.

Tips & Best Practices

Pro Tip

Remove metadata and editor data for 30-60% size reduction

Design tools (Illustrator, Figma, Sketch) embed editor metadata, comments, hidden layers, and unused definitions in exported SVGs. Stripping this data typically reduces file size by 30-60% with zero visual change. SVGO is the standard optimizer — run it on every SVG before committing to your repo.

Common Pitfall

Aggressive optimization can break SVG animations and filters

Removing IDs, merging paths, or converting shapes to paths can break CSS animations targeting specific elements, SMIL animations, JavaScript interactions, and filter references. If your SVG uses animation or interactivity, test the optimized output thoroughly. Disable path merging and ID removal for interactive SVGs.

Real-World Example

Inline SVG vs img tag: choose by use case

Inline SVG (<svg> in HTML) allows CSS styling, JavaScript interaction, and eliminates an HTTP request — use for icons, logos, and interactive graphics. SVG as <img> is cached independently and doesn't increase DOM size — use for complex illustrations and decorative images that don't need manipulation.

Security Note

SVGs can contain embedded JavaScript

SVG supports <script> tags and event handlers (onload, onclick). An uploaded SVG with malicious JavaScript executes when rendered inline or viewed directly. Never serve user-uploaded SVGs inline — use <img> tag (blocks script execution), Content-Security-Policy, or sanitize with DOMPurify before rendering.

Frequently Asked Questions

How does SVG optimization reduce file size?
SVG optimization removes unnecessary metadata, comments, editor-specific data, hidden elements, and redundant attributes. Design tools embed extra information browsers do not need. The optimizer also rounds numeric precision, merges paths, removes empty groups, and collapses transforms. These operations typically reduce size by 20-60% without visual change. DevBolt processes everything client-side so SVGs containing proprietary designs are never uploaded.
Will optimizing my SVG change how it renders?
No, properly optimized SVGs render identically. The optimizer only removes data that does not affect visual output: editor metadata, unused namespaces, comments, and hidden elements. Numeric precision is reduced to a level below the visible threshold. DevBolt shows a before-and-after preview so you can visually verify the output matches the original before downloading.
What causes SVG files from design tools to be unnecessarily large?
Design tools add proprietary metadata, generator comments, excessive decimal precision in coordinates, inline styles that could be shorter as attributes, unoptimized path data, embedded fonts or base64 raster images, unused gradient definitions, and empty group elements from deleted layers. Complex illustrations may contain hidden layers or elements outside the viewBox. DevBolt's optimizer addresses all of these in a single pass.

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