@kornelski kornelski released this Dec 21, 2014 · 2370 commits to master since this release

Assets 3

Based on MozJPEG 3.0.


./cjpeg -quality 60 -outfile out.jpg in.png

If colors are smudged:

./cjpeg -sample 1x1 -quality 60 -outfile out.jpg in.png

When generating high-resolution images:

./cjpeg -quant-table 2 -quality 30 -outfile out.jpg in.png

The binary has been compiled for OS X 10.10 and 64-bit Intel.
Compatibility with older systems is ¯_(ツ)_/¯

Aug 30, 2014
Tag 1.3.90 (1.4 beta1) release

@kornelski kornelski released this Jul 28, 2014 · 3497 commits to master since this release

Assets 3


  • all features in mozjpeg 2.0.1, except SIMD acceleration
  • compressive images for Retina display: mozilla#76
  • deringing for high-contrast text/lines: mozilla#7

Supports OS X 10.7+.

Jul 10, 2014


Update MS-SSIM tuning
Change optimization parameters when tuning for MS-SSIM for better