PNG to ICNS Converter

Select files for conversion or just drag and drop them to the upload area

How to convert PNG files to ICNS online?

Step 1.

Upload PNG-file

Click "Choose File" button to select a png file on your computer. PNG file size can be up to 50 Mb.
Step 2.

Convert PNG to ICNS

Click "Convert" button to start conversion.
Step 3.

Download your ICNS

Let the file convert and you can download your ICNS file right afterwards.

Information about PNG and ICNS file formats

Name PNG ICNS
Full name PNG - Portable Network Graphics ICNS, Mac OS X Icon Resource File
File extension .png .icns
MIME type image/png
Developed by PNG Development Group Apple
Type of format lossless bitmap image format System
Description Portable Network Graphics (PNG) is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet. PNG itself does not support animation at all. MNG is an extension to PNG that does; it was designed by members of the PNG Group. Icon files used on MAc computers and other OS X devices use the file extension ICNS. These icon files are used to display a small image (icon) in the OSX Finder or dock, representative for an application which it is linked to. ICNS files support images in a variety of dimensions. They range from 16x16 pixels to 512x512 pixels. As of OS X Mountain Lion, ICNS files can support even bigger images, namely of the 1024x1024 pixels dimension.
Technical details PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without alpha channel), and full-color non-palette-based RGB[A] images (with or without alpha channel). PNG was designed for transferring images on the Internet, not for professional-quality print graphics, and therefore does not support non-RGB color spaces such as CMYK. The content of the ICNS file typically consists of one or more images in the PNG format. This format is pretty handy as a base for the ICNS since it allows transparency. The ICNS file supports 1-bit as well as 8-bit alpha channels. What differentiates them from Windows' ICO files is that ICNS files can contain individual icon resources, thus acting more like a container file.
Associated programs Adobe Photoshop, Paint Shop Pro, the GIMP, GraphicConverter, Helicon Filter, ImageMagick, Inkscape, IrfanView, Pixel image editor, Paint.NET, Xara Photo & Graphic Designer. Adobe Photoshop with IconBuilder for Mac Plugin (Mac), Apple Preview (Mac), Axialis IconWorkshop (Windows), Folder Icon X (Mac), Icon Machine (Mac), Iconographer (Mac), Inkscape (Windows, Mac & Linux), Snap Converter (Mac), XnViewMP (Windows, Mac & Linux)
Wiki https://en.wikipedia.org/wiki/Portable_Network_Graphics https://en.wikipedia.org/wiki/Apple_Icon_Image_format