Free online SVG to ICO converter

Windows Explorer, desktop shortcuts, executable files, and some application launchers require ICO icons instead of SVG files. Converting the artwork creates a raster icon that can contain several embedded sizes for clearer display at different resolutions.

What the SVG format is

SVG (Scalable Vector Graphics) is an XML-based vector format that describes paths, shapes, text, fills, and effects. Browsers, design applications, documentation systems, and user interfaces use SVG for logos, diagrams, interface icons, and illustrations because the artwork can scale without the pixelation of a fixed-size bitmap. Inkscape, Adobe Illustrator, CorelDRAW, Figma, and many web tools can create SVG files.

An SVG can also contain external images, web fonts, filters, masks, blend modes, scripts, and animation. These features may not survive rasterization or may require the original resources to be available.

What the ICO format is

ICO is a Windows icon container rather than a vector format. It can store multiple raster images, commonly 16×16, 32×32, 48×48, 64×64, 128×128, and 256×256 pixels; 32-bit RGBA entries preserve transparency. Windows or another application selects the embedded image closest to the required display size, so a multi-resolution ICO is usually clearer than one bitmap enlarged for every use.

ICO is used for Windows applications, folders, shortcuts, and commonly accepted website favicons. Modern websites can also use PNG or SVG favicons, but software that specifically requests an ICO file needs a raster icon container.

How to convert an SVG file to ICO

The conversion rasterizes the vector artwork at one or more pixel dimensions, then stores those raster images in one ICO file. Before exporting, check that the SVG has a square page or selection, a suitable viewBox, and no unwanted whitespace around the artwork.

Convert with 101convert.com

1. Open the SVG-to-ICO converter on 101convert.com.
2. Select SVG as the input format and ICO as the output format.
3. Upload the SVG and start the conversion.
4. Download the generated ICO file and test it in the target Windows application or folder.

This option converts the file without installing desktop software and is free to use. Do not upload confidential artwork unless the service's handling and retention policies are suitable for the file.

Convert with ImageMagick

ImageMagick can rasterize an SVG and create a multi-size ICO directly. Install a build with SVG support, then run:

magick input.svg -background none -define icon:auto-resize=16,32,48,64,128,256 output.ico

-background none requests transparent empty areas, and icon:auto-resize creates the listed embedded sizes. An explicit background rectangle in the SVG still overrides this setting. ImageMagick relies on an SVG rendering delegate, so filters, linked resources, fonts, and complex effects may render differently from the original.

Convert with Inkscape and ImageMagick

Inkscape generally provides more predictable SVG rendering. Export a PNG for each required size:

inkscape input.svg --export-type=png --export-filename=icon-256.png --export-width=256

Repeat the command with 16, 32, 48, 64, and 128 as needed. Then combine the PNG files into one ICO:

magick icon-16.png icon-32.png icon-48.png icon-64.png icon-128.png icon-256.png output.ico

In Inkscape's desktop interface, open the SVG, choose File → Export, select Page or Selection as the export area, set the pixel width, and export each PNG. Use identical artwork bounds for every export so the icon does not shift between embedded sizes.

Quality and compatibility limits

• Use transparency for logos and interface icons when the icon must work on dark or colored backgrounds. A white rectangle in the SVG produces an opaque white icon.
• Include at least 16×16, 32×32, 48×48, and 256×256 entries for general Windows use. Add 64×64 and 128×128 entries when the target software benefits from them.
• Simplify fine strokes, small details, and text for 16×16 and 32×32 versions; detail that is legible in the SVG may disappear after rasterization.
• Embed linked images and use installed fonts, or convert text to paths when consistent font rendering is required. Filters, masks, blend modes, animation, scripts, and external resources may be lost.
• ICO cannot retain SVG scalability. Enlarging the resulting icon beyond its largest embedded bitmap causes interpolation and cannot restore vector sharpness.
• Check the ICO in Windows Explorer and in the intended application. Older software may ignore 256×256 entries, reject unusual dimensions, or support only a subset of color depths.