Wrap a PNG image in an ICO container for use as a website favicon or app icon.
Try an example
Load a ready-made sample into this tool and run it. Every result you see is calculated live by the tool itself — nothing here is a pre-written answer.
Sample: File: sample-transparent.png
How to Use
- Choose a PNG file, ideally square (up to 5 MB).
- Click Run.
- Download the ICO file.
Wrapping a PNG image in an ICO file
This PNG to ICO converter takes one PNG image and wraps it in an ICO container, producing a single icon file you can use as a website favicon or app icon. Choose a PNG, ideally a square one, click Run, and download the ICO. Converting PNG to ICO this way is a packaging step: your picture goes in unchanged. The file limit is 5 MB.
A good fit for favicons and app icons
Use it when a site or tool asks you to supply an .ico file and you already have your artwork as a PNG, such as a simple logo mark or initial. Square artwork works best, because icons are displayed in square slots and non-square images can look squeezed. Simple shapes read best at tiny sizes.
Good to know
The ICO simply contains the PNG data you gave it; the image itself is not redrawn or rebuilt at other sizes. Very old software that cannot read PNG-based ICO files may reject the result, though current browsers and systems read them without trouble.
Frequently asked questions
Does the converter create every icon size for me?
No. The ICO contains the single PNG you chose, at its own size. It does not generate a set of resized copies. If a platform asks for a specific size, resize your PNG to that size before converting.
What PNG should I start with?
A clear, square PNG with a simple design works best, because icons are usually shown very small. Files up to 5 MB are accepted, though a simple mark at a modest pixel size is all a favicon needs.
Is my image uploaded to a server?
No. The PNG is wrapped into the ICO inside your browser and is never sent to this site's server. Your artwork stays on your device from start to finish.
How to use PNG to ICO Converter
- Choose a PNG file, ideally square (up to 5 MB).
- Click Run.
- Download the ICO file.
Limitations
The ICO simply contains your PNG data; very old software that cannot read PNG-based ICO files may reject it. Files are processed in your browser and never sent to the site's server.