ICO File Generator

Create high-quality multi-size ICO favicons instantly. Local processing ensures your images stay private.

100% Private. Local-only conversion.

Drop your image here

PNG, JPG, or WebP

Release to upload

How to Create an ICO Favicon

1

Upload Image

Select a square PNG, JPG, or WebP image. High-resolution source works best.

2

Select Sizes

Choose the sizes to include. 16x16, 32x32, and 48x48 are recommended for maximum compatibility.

3

Download ICO

Generate your multi-size ICO file and download it for use as your website favicon.

Why Multi-Size ICO?

A single ICO file can contain multiple images of different sizes. This allows browsers to select the most appropriate resolution for different contexts—like the browser tab, taskbar, or desktop shortcut—ensuring your favicon always looks crisp.

Crisp Icons at any Scale
Better Legacy Browser Support
Professional Quality Favicons

Frequently Asked Questions

What is an ICO file?
An ICO (Icon) file is an image format primarily used for favicons in Microsoft Windows. It's unique because it acts as a container for multiple small images of different sizes and color depths.
Which sizes should I include?
For a standard web favicon, 16x16, 32x32, and 48x48 are the most important. 16x16 is for browser tabs, while 32x32 and 48x48 are often used by Windows for taskbars and shortcuts.