jpegrescan ☆
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Description:
Losslessly shrink any JPEG file
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Multimedia
Tags: jpeg optimization compression images cli
Install: brew install jpegrescan
About:
Jpegrescan is a command-line utility that losslessly optimizes JPEG images by scanning for the most efficient Huffman table encoding. It works by re-encoding the image data without altering pixel values, ensuring 100% visual fidelity. This process typically results in smaller file sizes, making it ideal for web performance optimization.
Key Features:
  • Lossless compression ensures no quality degradation
  • Command-line interface for easy scripting and automation
  • Significantly reduces JPEG file sizes for faster loading
  • Preserves all original image metadata and EXIF data
Use Cases:
  • Optimizing website images to improve page load speeds
  • Batch processing large photo libraries for storage efficiency
  • Preparing images for email or digital distribution
Alternatives:
  • jpegoptim – More widely used, offers both lossy and lossless modes
  • mozjpeg – A modern JPEG encoder focused on better compression ratios
Version History
Detected Version Rev Change Commit
Sep 14, 2024 8:52pm 1 VERSION_BUMP 192e26de
Apr 5, 2024 4:05pm 1 VERSION_BUMP daae7c30
Nov 22, 2022 4:27am 1 VERSION_BUMP 029b61fb
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