jpegoptim
github.com
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
Where Specifiction places it
- Image Compression Software#44 of 857.9