All tools

PNG to ICO

Turn a PNG into a multi-size Windows .ico icon (16, 32 and 48 px).

Select an image

Click to choose, or drop a file here

How to PNG to ICO

  1. 1

    Add the PNG

    Drop in a square PNG for the sharpest icon; it's processed on your device.

  2. 2

    Convert

    It's packed into a single .ico file holding 16, 32 and 48 px versions.

  3. 3

    Download

    Save the .ico and drop it into your site root as favicon.ico.

Related PDF tools

PNG to ICO — frequently asked questions

What sizes are in the .ico?+

16, 32 and 48 px, packed into one file — the sizes Windows and browsers use for favicons and shortcuts.

Should my PNG be square?+

Yes. A non-square image is centred and letterboxed to fit, which usually isn't what you want for an icon.

Is the image uploaded?+

No — the .ico is built entirely in your browser.

Do you upload my files to a server?+

No — every tool here processes your files entirely on your device, and nothing is uploaded to a server. The only exception is the AI tools, which send the extracted text (not the file) to Claude to do their work.

Is there a file size limit?+

There's no artificial limit we impose, but since processing happens in your browser, very large files (500+ MB or 1,000+ pages) are limited by your device's memory rather than by us.