PNG to ICO Converter

How to use PNG to ICO Converter

1. Drop one or more PNG files onto the upload area, or tap to browse.
2. Press Convert to ICO; there are no settings to adjust for this format.
3. Download the .ico file, or use Download all (ZIP) if you added several PNGs.

What goes into the ICO file

The converter draws your PNG onto a square canvas whose side is the larger of its width and height, capped at 256 pixels. A non-square logo is scaled to fit and centred, with transparent padding on the short sides. That square is saved as a PNG and wrapped in a standard ICO header, a layout Windows Vista and later, and all modern browsers, can read.

Start from a square PNG of at least 256 × 256 pixels for the sharpest result. Simple, bold shapes survive better than fine text, because browsers shrink a favicon down to 16 or 32 pixels in the tab bar. Website owners, bloggers and students building a portfolio site are the usual users.

Limitations

• Each ICO holds a single image size (up to 256 px); it does not pack separate 16, 32 and 48 px versions into one file.
• The embedded image is PNG-compressed, which very old software such as Windows XP may not display.
• Only .png files are accepted on this page; convert JPG or WebP to PNG first.

Frequently asked questions

What size should my PNG be for a favicon?

A square image of 256 × 256 pixels or larger works best. Smaller images are not enlarged, so a 64 px PNG gives a 64 px icon.

Will my transparent background survive?

Yes. The alpha channel is preserved, and any padding added to make a rectangular image square is also transparent.

How do I add the icon to my website?

Upload it to your site's root as favicon.ico, or link it in the page head with a rel="icon" tag. Browsers cache favicons heavily, so a hard refresh may be needed to see the change.

Does the PNG get sent to a server?

No. The ICO is assembled with JavaScript inside this browser tab, and the file is offered straight back to you as a download.