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SPECIFICTION
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jpegoptim

github.com

Free plan WindowsmacOSLinux
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Spec score 7.9 #44 of 85 in Image Compression Software

Spec sheet

Purpose
jpegoptim is a utility to optimize and compress JPEG files.Read 11 Oct 2026 · github.com
Intended users
The maker lists jpegoptim among software projects for Linux and Unix.Read 11 Oct 2026 · kokkonen.net
Platforms
The maker lists Linux, macOS and Windows as tested platforms.Read 11 Oct 2026 · github.com
Free plan
YesRead 20 Sep 2026 · github.com
Support
The maker's project page links to a man page and the Git repository for jpegoptim.Read 11 Oct 2026 · kokkonen.net
License
The repository identifies the software license as GPL-3.0.Read 11 Oct 2026 · github.com
Batch processing
It can read filenames from a file or standard input and can process files in parallel using a configurable worker limit.Read 11 Oct 2026 · github.com
Compression modes
bothRead 20 Sep 2026 · github.com
Dependencies
It requires libjpeg version 6b or later and may also work with libjpeg-turbo or mozjpeg.Read 11 Oct 2026 · github.com
Distribution
The maker provides source archives and identifies the Git repository as a source distribution.Read 11 Oct 2026 · kokkonen.net
File handling
By default it overwrites input files when they are optimized, and it can save output to an alternate destination directory.Read 11 Oct 2026 · github.com
Input limitations
Only normal files are optimized; symbolic links and special files are skipped.Read 11 Oct 2026 · github.com
Metadata
It keeps EXIF, IPTC, ICC, XMP and JPEG comment markers by default, while options allow stripping markers.Read 11 Oct 2026 · github.com
Metadata controls
YesRead 20 Sep 2026 · github.com
Optimization modes
It supports lossless optimization by optimizing Huffman tables and lossy optimization with a maximum image quality setting.Read 11 Oct 2026 · kokkonen.net
Security maintenance
The v1.5.7 release notes report a fix for a potential security issue involving symlink following during file creation.Read 11 Oct 2026 · github.com
Supported formats
JPEG,JFIFRead 20 Sep 2026 · github.com
Target size
It can try to optimize an image to a target size specified in kilobytes or as a percentage of the original file size.Read 11 Oct 2026 · github.com

Plans and prices

Free Free GPL-3.0 licensed JPEG optimization utility Read 11 Oct 2026 · github.com

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