ICO File Converter
Online ICO File Converter - Instant Download!
Drag your file here to to upload.
Up to 250MB
How to Use ICO Converter
Step 1 – Upload ICO file
Drag your .ICO file or use the browse button.
Step 2 – Choose Format
Select the desired output format from the dropdown list.
Step 3 – Download File
Click "Convert" and download your converted file once ready.
About ICO (.ICO)
ICO files are image files used to store icons for Windows programs and websites. These small graphics help users identify applications and files at a glance by displaying them on desktops and taskbars. Interestingly, the ICO format has been a standard in Microsoft Windows since Windows 1.0, making it one of the oldest icon formats still in use today.
Technical Details
An ICO file typically stores images in BMP or PNG format within a single container. It supports multiple color depths, including 16 colors, 256 colors, and 24-bit true color with alpha transparency. The structure includes a header, one or more image directory entries, and the actual image data, enabling versatile icon representations for different user interface needs.
Additional Information & Use Cases
ICO files can contain multiple images of different sizes and color depths, allowing Windows to select the best icon depending on the display context. This multi-resolution capability helps icons look sharp on various screen sizes and resolutions. Many modern design tools support ICO creation, making it easy to customize icons for software and web use.