ICO
Icon File Format
What is ICO?
ICO is an image file format used for icons in Microsoft Windows. A single ICO file can contain multiple images at different sizes and color depths, allowing the operating system to select the most appropriate version for the display context. ICO files are also used as favicons for websites, making them essential for web branding.
Key Features
Common Use Cases
Advantages
- Supports multiple sizes in a single file
- Transparency support
- Universal favicon format
- Native Windows integration
- Supports various color depths
Limitations
- Limited to small image sizes (typically up to 256x256)
- Primarily Windows-specific format
- Not efficient for general-purpose images
- Outdated compression methods
- Being replaced by PNG and SVG for favicons in modern browsers
Convert ICO Files
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