What Image to ICO does
Image to ICO converts an image into a multi-size Windows .ico favicon file.
- Multi-size ICO
How do I convert an image to an ICO favicon?
Convert an image to an ICO by uploading a PNG or JPG; the tool generates a multi-size Windows .ico favicon (16, 32, 48px and more) ready for your website or app. It runs in your browser, so nothing is uploaded.
- Creates multi-size .ico favicons
- Includes 16/32/48px and larger
- From PNG, JPG or SVG
- 100% client-side
What is
Image to ICO
A converter that turns an image into a Windows ICO file containing multiple icon sizes for use as a favicon or app icon.
Image Tools
Related terms
faviconicon
Frequently Asked Questions
Standard favicon sizes.
The .ico bundles common sizes like 16, 32 and 48 pixels so it displays crisply everywhere.
Yes.
The output is a ready-to-use favicon.ico for websites and apps.
No.
The ICO is generated locally in your browser.
Detailed Explanation
How it works
The image is resized to each icon dimension on a canvas and packed into the ICO container format.
- Canvas resize + ICO packing
Use cases
Create a favicon.ico for websites, or icons for desktop apps and shortcuts.
- Website favicons
Limitations
ICO is best for small icon sizes; for large graphics a PNG is more appropriate.
- Icon sizes only
Privacy
The image is processed entirely in your browser with the Canvas API; nothing is uploaded to a server.
- 100% local
- No upload