How do I open a .JBIG file?

Drop a .JBIG file onto Analyser at https://lab.valjdakosta.com/ and it is identified directly in your browser - no upload, no account and no software to install. Decode and preview extra still-image formats in pure JavaScript - Truevision TGA, QOI, Netpbm (PPM/PGM/PBM), PCX, farbfeld, WBMP, XBM/XPM, Sun Raster and SGI are fully rendered - and read header metadata from codec-heavy formats: Radiance HDR, DirectDraw Surface (DDS) game textures, OpenEXR, JPEG 2000, JPEG XR, EPS/PostScript, Windows WMF/EMF metafiles, Apple ICNS icons, CUR/ANI cursors, MNG and Lottie animations.

Can I open a .JBIG file online for free?

Yes. Analyser is a free online .JBIG identifier that runs entirely in your browser - your .JBIG file never leaves your device, so there is nothing to upload and no software to install. It even works offline once installed.

.JBIG file - what it is and how to identify it online

Click here to analyse any file

Home › Formats › .JBIGID

What is a .JBIG file?

JBIG is a lossless bi-level (black-and-white) image format built for fax and scanned documents, compressing far better than older fax codecs.

Did you know: JBIG modelled each pixel from its neighbours to squeeze scanned pages, the technology behind advanced fax compression.
Analyser handles .JBIG alongside related formats such as .TGA, .QOI, .PPM and more.
In Analyser's format library, .JBIG sits in the Images category.
What Analyser reads: Decode and preview extra still-image formats in pure JavaScript - Truevision TGA, QOI, Netpbm (PPM/PGM/PBM), PCX, farbfeld, WBMP, XBM/XPM, Sun Raster and SGI are fully rendered - and read header metadata from codec-heavy formats: Radiance HDR, DirectDraw Surface (DDS) game textures, OpenEXR, JPEG 2000, JPEG XR, EPS/PostScript, Windows WMF/EMF metafiles, Apple ICNS icons, CUR/ANI cursors, MNG and Lottie animations.
Depth of analysis: .JBIG is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
Open a .JBIG file: Drag a .JBIG file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
Related formats: .TGA · .QOI · .PPM · .PGM · .PBM · .PNM · .PAM · .PCX · .FF · .FARBFELD · .WBMP · .XBM · .XPM · .RAS · .SGI · .BW · .HDR · .DDS and more. See all supported file types.