Convert JBIG images (JBG) online for free
The converter easily converts your JBG images to various formats - free and online. No IrfanView or other Raster Image software needed.
The converter also works in reverse, so you can convert other "Bi-level Compressed Image" formats to JBG without using software like IrfanView or a similar tool.
A .JBG file is a Joint Bi-level Image Group bitmap image. It stores 1-bit black-and-white raster graphics, usually used for fax transmissions, scanned text documents, or archives requiring high-ratio lossless compression.
You can view .JBG files using dedicated legacy image viewers like IrfanView or XnView. The format relies on the JBIG or JBIG2 compression standards, which are optimized specifically for bi-level (black and white) data.
However, this format is highly impractical for everyday use today. Most modern operating systems and web browsers cannot natively render .JBG files. If you email this file to a client or colleague, they will likely see an error message. It is strictly a 1-bit format, meaning it cannot store color or grayscale data, and native support in standard modern graphics editors like Adobe Photoshop is almost non-existent.
For universal document sharing, convert .JBG to PDF. For web display and general editing, convert to PNG, as it natively supports lossless rendering. For high-resolution archival scanning, use TIFF. Drag and drop your file to convert.guru to analyze and convert it - free, online, and without installing software.
Use Convert.Guru to open and convert your JBG file.
Users also converted JPEG, PNG, JPG, PDF, MP4, ENC, PJP, THUMB7 and IFX files.
If you want to convert JBG file to JPG, PDF, PNG, GIF, BMP, TIFF, TIF, ICO, CUR, PSD or PSB, you can use IrfanView or similar software from the "Bi-level Image Compression" category. In the File menu, look for Save As… or Export….
To convert RAW, PNG, AI, NEF, PSB, DNG, SVG, GIF, EPS, JPG, ARW or PDF files to JBG, try IrfanView or another comparable tool in the "Bi-level Image Compression" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our JBG converter.