What is an ICO file?
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The ICO file format is an image format used for icons in Microsoft Windows. It contains bitmap images at multiple resolutions and sizes and a mask to support transparency. Initially, the icons had a size of 32x32 pixels and used 16 colors. More recent versions of Windows support multiple sizes and color depths. Current icons hold images of typically 16x16, 32x32, and 48x48 pixels at 4, 8, and 32-bit color depth.
MIME type: image/x-icon
Windows Icon Editor
is a Windows Icon Editor capable of editing ICO files.
1-bit, 4-bit, 8-bit (2, 16, 256 colors)
- Arrow symbols from Clysmic Clysbar
- Icons from Clysmic Clysbar
ICO file format