Convert SVGZ to ICO — Free Online Converter

ICO (Windows Icon) is the standard icon format for Windows applications, containing multiple image sizes (16x16, 32x32, 48x48, 256x256) in a single file. Converting SVGZ to ICO rasterizes the compressed vector graphic at multiple standard icon sizes, packaging them into one ICO file that Windows uses for application icons, file type associations, and taskbar display.

SVGZ's vector nature makes it an ideal source for ICO generation — the mathematical descriptions scale perfectly to each icon size without any interpolation artifacts. A well-designed SVGZ logo produces crisp, clean icons at every standard size, from tiny 16px favicons to large 256px desktop icons.

Windows requires ICO files for application icons, file type icons, and shortcuts. Web developers need ICO for favicons (the small icon displayed in browser tabs). SVGZ vector graphics are the ideal source for icon generation because they scale losslessly to any size.

Creating ICO from SVGZ ensures every embedded size — from 16px to 256px — is a sharp rasterization of the original vector, rather than a resized copy of a single raster image that would show interpolation blur at small sizes.

The converter decompresses the gzip layer, parses the SVG, and rasterizes at multiple standard sizes: 16x16, 32x32, 48x48, and optionally 64x64, 128x128, and 256x256 pixels. Each size is rendered independently from the vector source for maximum sharpness. The images are packaged in a single ICO file using the Windows icon format structure. 256x256 sizes use PNG compression within the ICO. Smaller sizes use uncompressed BMP data.