PNG
| File:PNG | |
  A PNG image with an 8-bit transparency channel (top). The same image is overlaid onto a checkered background (bottom), typically used in graphics software to indicate transparency. | |
| Filename extension |
.png |
|---|---|
| Internet media type |
image/png |
| Type code | PNGfPNG |
| Uniform Type Identifier (UTI) | public.png |
| Magic number | 89 50 4e 47 0d 0a 1a 0a |
| Developed by | PNG Development Group (donated to W3C) |
| Initial release | 1 October 1996 |
| Type of format | lossless bitmap image format |
| Extended to | APNG, JNG and MNG |
| Standard | ISO/IEC 15948,[1] IETF RFC 2083 |
| Free format? | Yes |