An ICO file is an image format used for icons in Windows and web browsers. It can contain multiple image sizes in a single file, making it perfect for favicons and application icons.

What sizes should I include for a favicon?

For best compatibility, include 16x16, 32x32, and 48x48 pixel sizes. Modern browsers also support larger sizes like 64x64, 128x128, and 256x256 for high-DPI displays.

Will transparency be preserved?

Yes, the converter preserves PNG transparency when creating ICO files, ensuring your icons look professional on any background.

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PNG to ICO Converter

Convert your PNG files to ICO format for favicons and icons.

Choose a PNG file

Select Icon Sizes

Download ICO