The Independent JPEG Group (IJG) is responsible for the reference implementation of the original JPEG standard. The reference software from the Independent JPEG Group was a key to the success of the original JPEG standard and has found widespread adoption in applications of image coding. Particularly, all contemporary digital photo cameras support the capture of images in JPEG format as the common medium for image interchange, and all image viewers, image editors, and Web browsers can display JPEG images as common standard.
The IJG implementation was first publicly released in October 1991 and has been considerably developed since that time.
In June 2009, Independent JPEG Group published a new major release (version 7) of the software package to enable a new set of features for image coding application and therewith to continue the success story of JPEG.
In January 2010, Independent JPEG Group introduced a new release (version 8) with extensions providing the fundament for the next generation image coding standard.
In January 2013, Independent JPEG Group released version 9 with improvements for the new introduced lossless coding mode.
JPEG 10 is a groundbreaking new release which clarifies the bit depth issue in JPEG.
It was released by Independent JPEG Group in January 2026.
| Filename | Size | Last modified | Type |
| jpegsr10.zip | 1,203 KB | 25 Jan 2026 | Zip Compressed Data |
| jpegsrc.v10.tar.gz | 1,074 KB | 25 Jan 2026 | Unix Tape Archive |
CHANGE LOG for Independent JPEG Group’s JPEG Software
Version 10 25-Jan-2026
jmorecfg.h: add JPEG_DATA_PRECISION parameter alongside and independent of BITS_IN_JSAMPLE, enabling higher bit depth support with backward compatibility and preparing the next standard for file interchange.
Add lossless negate function in jpegtran. Thank to Ulf-Dietrich Braumann for suggestion.
Enable processing of images using reversible color tranform with various bit depths by jpegtran.
Add Windows 64 Bit (Modern) platform support in the C++Builder/RAD Studio build, remove ARM (32-bit) platform support in the Visual Studio build.
Version 9f 14-Jan-2024
Add build system for C++Builder/RAD Studio.
Add build system for Xcode (beside configure).
Add ARM64EC (Emulation Compatible) platform support in the Visual Studio build.