About this tool
View the contents of an ICO file and inspect every embedded size. Shows all included resolutions, color depth of each, and lets you extract individual images. Useful for checking what a favicon contains, comparing against a platform's requirements, or converting ICOs into regular images for reuse.
How to use
- Upload the .ico file.
- See the list of embedded images with sizes and color depths.
- Inspect each one individually.
Frequently asked questions
- What is an ICO's color depth?
- How many colors each image supports. Old ICOs could have 16 or 256 colors (4 or 8 bits). Modern ICOs are usually 32 bits (16.7 million colors with alpha channel transparency). Different sizes in the same ICO can have different depths, though today 32 bits is standard for all.
- Can I extract a specific image to PNG?
- Yes. The tool lets you download each individual size as PNG, keeping transparency. Useful for reusing the image outside the favicon context or for using a specific resolution.
- Why do some ICOs have different sizes than I asked for?
- Sizes are defined by whoever created the ICO. If you load a favicon downloaded from another site, you'll get the sizes that person decided to include. If you want a specific combination, generate a new ICO from a source image with the conversion tool.