Resize Images to 512×512
Resize your images to 512×512 pixels for use as a favicon or web app icon. This is the recommended size for PWA icons and the largest common favicon size.
Drop images or folders here, or
Up to 20 files, or 50 from a folder. 50 MB each.
Images will be scaled to fit within 512×512 while preserving aspect ratio.
Ctrl+Z undo · Ctrl+Y redo
Preserve camera info, GPS, and other metadata
Need custom dimensions? Full resizer
When to Use Favicon
512×512 is the standard for Progressive Web App (PWA) icons, Android home screen icons, and Windows tile images. Browsers downscale to 16×16, 32×32, etc. as needed.
Tips for Favicon Images
Use PNG for favicons to preserve transparency. Keep the design simple and recognizable at small sizes. Test at 16×16 and 32×32 to ensure readability.
Frequently Asked Questions
Why 512×512 instead of 16×16?
Modern browsers and platforms use multiple sizes. Providing a 512×512 source lets the browser or OS downscale to whatever size it needs (16, 32, 48, 192, 512).
Should favicons be square?
Yes. Favicons should always be square (1:1 aspect ratio). Non-square images will be displayed with padding or cropped by the browser.