PNG to ICO Converter (Favicon Generator)
Create a multi-size .ico favicon from a PNG — free, private, in your browser.
✓ Your files never leave your device. Everything runs locally in your browser.
A favicon is the small icon shown in browser tabs and bookmarks. This tool turns a square PNG into a proper multi-size .ico file containing 16, 32, 48, 64, 128 and 256 pixel versions.
Everything is generated locally — your image is never uploaded.
How it works
- Choose a PNG – Use a square PNG (ideally 256×256 or larger) for the best result.
- Convert – Click Convert to generate all icon sizes.
- Download – Download the .ico and reference it from your website.
How to use the ICO
Save the file as favicon.ico in your site root and add <link rel="icon" href="/favicon.ico"> to your pages’ <head>.
Tips
- Use a square source image with transparent background.
- Keep important details large and simple so the 16×16 version stays legible.
- 256 px is the largest size ICO supports.
Frequently asked questions
Which sizes are included?
16, 32, 48, 64, 128 and 256 pixels.
Is my image uploaded?
No. The ICO is generated locally in your browser.
Does it need to be square?
Square works best. Non-square images are scaled to fit and centred.
Related tools
Create your favicon now — free, private and without uploading your image.