How to Reduce SVG File Size
SVG files from design tools often contain unnecessary metadata, redundant paths, and editor-specific data that inflate file size. Here is how to reduce SVG file size while preserving full visual quality.
About How to reduce SVG file size
SVG files exported from Adobe Illustrator, Inkscape, or Sketch contain significant overhead: editor metadata, style declarations, redundant groups, unused definitions, and comment nodes that are invisible in the browser but increase file size. Removing this overhead reduces SVG file size by 30–80% without any visual change.
Method 1 — SVG Cleanup tool: upload the SVG to the SVG Cleanup tool. The tool applies SVGO-based optimisation: removes editor metadata, collapses redundant groups, shortens IDs, merges compatible paths, and rounds coordinate precision. This is the fastest method and requires no software.
Method 2 — SVGO command line: install SVGO (npm install -g svgo) and run svgo input.svg -o output.svg. For bulk processing: svgo --folder ./svg-directory. SVGO supports custom plugin configurations for targeted optimisation.
Method 3 — Manual path simplification: open in Inkscape and use Extensions > Modify Path > Simplify to reduce the number of anchor points in complex paths. Fewer anchor points means less path data and a smaller file size. The simplify tolerance controls how much the path deviates from the original — start at 0.1 and increase until the visual change becomes noticeable.
Method 4 — Coordinate precision reduction: SVG coordinates like 123.456789 can often be rounded to 123.46 without any visible change at typical display sizes. SVGO's convertPathData plugin handles this. Reducing from 6 decimal places to 2 can reduce path data size by 30%.
Method 5 — Remove unused defs: open in a text editor and search for defs sections. Remove any clipPath, symbol, linearGradient, or radialGradient elements that are not referenced anywhere in the SVG. These inflate file size without contributing to the visible image.