ICO to SVG online converter (vectorizer)



Supported image types: ICO (Windows icon)
Max file size: 200MB. All uploaded files are automatically deleted 1 hour after upload.

Vectorize ICO Icons to Scalable SVG

Convert Windows icon (.ico) and website favicon files into resolution-independent SVG (Scalable Vector Graphics) using automated image tracing. When you upload a multi-resolution ICO file (for example, an icon containing 16×16, 32×32, 48×48, and 256×256 layers), this tool automatically selects the highest-resolution layer in the container so the vector tracer has as much detail as possible to work with.

How ICO Vectorization Works

ICO files store raster bitmaps (either uncompressed DIBs or embedded PNGs), which become blurry or blocky when scaled above their native pixel dimensions. Vectorization analyzes the color regions and contours of the icon and fits mathematical Bézier curves or polygons around them. Because icons and favicons usually consist of flat shapes, limited color palettes, and distinct outlines, they are great candidates for raster-to-vector tracing.

Tips for Tracing Small Favicons

  • High-resolution ICOs (128×128 or 256×256): Default spline/curve tracing settings produce smooth, clean vector paths that can be scaled to any print or display size.
  • Tiny pixel icons (16×16 or 32×32): Low-resolution icons have staircase pixel edges. Try reducing the color count to match the icon's palette, or switch the curve mode to polygon/pixel if you want to preserve crisp pixel-art geometry.

See also: SVG to ICO | ICO to PNG | PNG to SVG | SVG Optimizer