raster format

What is a .JBIG file?

JBIG is a lossless compression format for bi-level (black-and-white) images, used in fax and document scanning for sharp text at tiny sizes.

Full name
Joint Bi-level Image Group
Developed by
JBIG Committee
Released
1993
Extension
.jbig
MIME type
image/jbig
Transparency
Varies

How to open a JBIG file

JBIG opens in document and fax software; convert to TIFF/PNG to view in standard editors.

What JBIG files are used for

Photos & web images

Share, post and embed pictures across sites and apps.

Editing & design

Work with the format in editors like Photoshop and GIMP.

Storage & archiving

Keep memories and assets in a widely-readable form.

Strengths & limitations

✔ Strengths✖ Limitations
Lossless — keeps full qualityNo transparency support
Limited support — may need converting

Need more than a conversion?

Remove the background from JBIG images, upscale to 4K, or generate new visuals with SharkFoto AI.

Frequently asked questions

JBIG is a lossless compression format for bi-level (black-and-white) images, used in fax and document scanning for sharp text at tiny sizes.

JBIG opens in document and fax software; convert to TIFF/PNG to view in standard editors.

Yes — JBIG preserves full quality with no compression loss.

Use SharkFoto's free tools — upload your JBIG file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.

No — JBIG doesn't store transparency; convert to PNG or WEBP if you need it.