| .iwi |
Infinity Ward Texture File |
| .i3d |
Houdini Image 3D File |
| .icn |
Windows Icon File |
| .ilbm |
Interleaved Bitmap Image |
| .icon |
Icon Image File |
| .int |
Fallout Compiled Script |
| .icpr |
IconUtils Project File |
| .ipick |
iPick Football Image |
| .imj |
JFIF Bitmap Image |
| .icb |
Targa ICB Bitmap Image |
| .ic1 |
Low Resolution Imagic Graphics File |
| .ic2 |
Medium Resolution Imagic Graphics File |
| .ic3 |
High Resolution Imagic Graphics File |
| .ivue |
Live Picture IVUE Image |
| .iphotoproject |
iPhoto Print Project |
| .jpg |
JPEG Image |
| .jpeg |
JPEG Image |
| .jpx |
JPEG 2000 Image File |
| .jp2 |
JPEG 2000 Core Image File |
| .jps |
Stereo JPEG Image |
| .jpc |
JPEG 2000 Code Stream File |
| .j2c |
JPEG 2000 Code Stream |
| .jbr |
Paint Shop Pro Brushes File |
| .jng |
JPEG Network Graphic |