How to Optimize SVG Files Online (Free)
SVG files exported from Illustrator, Figma, or Inkscape often contain megabytes of editor-specific metadata, comments, and redundant attributes that browsers never use. Optimising an SVG can reduce its size by 30–70% — improving page load times and keeping your codebase clean. This guide shows you how to optimise any SVG in your browser.
Why SVGs Are Often Unnecessarily Large
- Design tool metadata (
sodipodi:,inkscape:,dc:namespaces) - XML comments and copyright notices
- Unused
<defs>, empty groups, and hidden layers - Whitespace and newlines that browsers ignore
- Redundant default attribute values
Step-by-Step Instructions
Open the SVG Optimizer
Navigate to the SVG Optimizer tool. It processes SVG code entirely in your browser using the DOM parser — no upload required.
Paste or upload your SVG
Paste the SVG markup into the input area, or click Upload to open an .svg file from your computer.
Review the optimisation options
The tool offers checkboxes for common optimisations: remove XML comments, remove metadata, strip editor namespaces (Inkscape, Illustrator), remove empty groups, and collapse whitespace.
Run the optimiser
Click Optimize. The output SVG code appears in the right panel with the original vs. optimised file size shown.
Verify the visual output
Paste the optimised SVG into the SVG Editor tool to visually verify that the rendering is unchanged before using it in production.
Copy or download
Click Copy SVG to copy the optimised code to your clipboard, or Download to save it as an .svg file.
Expected Size Reductions
- Inkscape exports — typically 40–60% reduction from removing sodipodi/inkscape namespace data.
- Illustrator exports — 20–40% from removing Adobe metadata and empty groups.
- Figma SVG exports — already relatively clean, but 10–20% from whitespace removal.
- Hand-coded SVGs — minimal reduction; mainly whitespace cleanup.
Optimize your SVG now
Paste any SVG and reduce its file size instantly. Free, browser-based.
Open SVG Optimizer