Favicons are the small icons that appear in browser tabs, bookmarks, and history. Standard favicon sizes are 16x16, 32x32, and 48x48 pixels. Modern browsers also use larger sizes (180x180 for Apple touch icons, 192x192 for Android).
To create a favicon from an existing image, crop it to a square, resize to the target dimensions, and save as PNG. For the best results, start with a simple, high-contrast design that remains recognizable at very small sizes.
With ImgTools, upload your logo or icon, crop to a 1:1 square, and resize to 32x32 for the standard favicon size. Save as PNG for transparency support. Create additional sizes (16x16, 48x48, 180x180, 192x192) for comprehensive favicon support.
For production websites, consider using a favicon generator tool that creates all needed sizes and formats from a single source image, including ICO format for legacy browser support.
All processing happens locally in your browser.