File Type Portable Network Graphic IconPortable Network Graphic
File Format Standard
Usage Referenced by an application; not meant to be opened manually; may run a program or script when opened
Rank ★ ★ ★  Common

Image format that uses indexed colors and lossless compression (like a .GIF file), but without copyright limitations; cannot be animated like a GIF image, though the related .MNG format can.

PNG images may also include an 8-bit transparency channel, which allows the colors in the image to fade from opaque to transparent; GIF images only support fully opaque or fully transparent pixels; PNG images are now supported by most Web browsers.

Mac OS X 10.4 and later saves screenshots as PNG files.

Open With

IconMicrosoft Windows Photos

IconMicrosoft Windows Photo Viewer

IconMicrosoft Paint


IconApple Preview

IconApple Photos

IconApple Safari



IconOther picture viewer

IconOther Web browser

Updated 2007