ICO file format

Icon

What a ICO file is, and everything you can convert it to and from.

What is a ICO file?

A container format for small icons at multiple sizes, used for favicons and app icons.

raster image · lossless · website favicons and Windows app icons

Convert ICO to

ICO → AVIF ICO → BMP ICO → GIF ICO → JPG ICO → PDF ICO → PNG ICO → PPM ICO → PSD ICO → TGA ICO → TIFF ICO → WEBP

Convert to ICO from

AVIF → ICO BMP → ICO GIF → ICO HEIC → ICO HEIF → ICO JFIF → ICO JPEG → ICO JPG → ICO PNG → ICO PPM → ICO PSB → ICO PSD → ICO SVG → ICO SVGZ → ICO TGA → ICO TIFF → ICO WEBP → ICO XCF → ICO

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Last updated July 2026