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Mozilla JPEG Encoder Project

  • FreeOpen Source
  • Mac
  • Windows
  • Linux

What is MozJPEG?

MozJPEG reduces file sizes of JPEG images while retaining quality and compatibility with the vast majority of the world's deployed decoders.


• Progressive encoding with "jpegrescan" optimization. It can be applied to any JPEG file (with jpegtran) to losslessly reduce file size. • Trellis quantization. When converting other formats to JPEG it maximizes quality/filesize ratio. • Comes with new quantization table presets, e.g. tuned for high-resolution displays. • Fully compatible with all web browsers. • Can be seamlessly integrated into any program using libjpeg.

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MozJPEG information

  • Developed byMozilla
  • LicensingOpen Source and Free product.
  • Written in
  • Alternatives3 alternatives listed

Supported Languages

  • English

GitHub repository

  •  5,071 Stars
  •  425 Forks
  •  89 Open Issues
  •   Updated
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MozJPEG was added to AlternativeTo by Ugotsta on and this page was last updated . MozJPEG is sometimes referred to as mozjpeg, Mozilla JPEG Encoder Project.

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  • software-library
  • optimize-jpeg
  • programming
  • encoder
  • Images
  • jpeg



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