Almost any bitmap image can be used for making icons, and that includes PNG images. There exist plenty of icon making or editing software that can help you with this task.
Convert Portable Network Graphic to Icon image.
We have found 14 software records in our database eligible for .png to .ico file format conversion.
Microsoft Windows software - convert png to ico on Windows
A simple vector graphics editor
Convert from png file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned png to ico. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A complete image retouching program
A 3D CAD translation softwate
An image browser, converter and editor for Windows
Photo Manager is digital photo editor and manager for Windows
One of the best bitmap graphic editing program
An image viewer for Windows
A multifunctional media converter for Windows
Apple macOS / Mac OS X software - convert png to ico on OS X
A basic document and image viewer in Mac OS X
Mac version of popular digital image editor
Multiplatform software - convert png to ico on any platform
A popular utility for viewing and converting graphic files
Cross-platform batch image transcoder compatible with 500 picture image formats
On-line services software - convert png to ico on web
An online graphics converter and resizer