Open a FAX file online
Fax Image File (Group 3 1-bit raster) · Free online file viewer
Drop your file here
or choose it from your device
What is a .FAX file?
A .fax file is a black-and-white fax document saved as a 1-bit raster image by fax modem software from the late 1980s through the 2000s. On Windows, XnView MP or IrfanView open most variants; on Mac, Preview often works. If it will not open, rename a copy to .tif and try again.
- Full name
- Fax Image File (Group 3 1-bit raster)
- Category
- Raster Image Files
- Type
- Monochrome (1-bit) raster image, CCITT Group 3 (T.4) / Group 4 (T.6) compressed (binary)
- MIME
- image/fax
- Developer
- Various fax software vendors (no single owner); CCITT/ITU-T Group 3 encoding