PNG File Extension

Have a problem opening a .PNG file? We collect information about file formats and can explain what PNG files are. Additionally we recommend software suitable for opening or converting such files.

What is the .PNG file type?

The .png extension is associated with the Portable Network Graphics (PNG) file format. PNG is an extensible, royalty-free, cross-platform and portable format for raster graphics. It handles greyscale, palette-based and non-palette-based RGB(A) and truecolor images with 8/16/32/48-bit color depth, while supporting lossless compression and alpha-channel transparency.

The PNG format was designed to replace the older GIF format in web graphics by providing the same level of crispness for line art and logo graphics, while adding support for full-color images. A typical .png image file would have a smaller size than a GIF, better image quality than a JPEG, and take advantage of lossless compression like a TIFF (although by a different algorithm).

PNG files would usually hold one image per file. A .png file has a layered, chunk-based internal structure, with each chunk storing specific information about the image.

All current web browsers offer full support for .png images despite certain issues still found in earlier versions of Microsoft Internet Explorer.

Software to open or convert PNG files

You can open PNG files with the following programs: 

Popular Formats

Video Tutorials