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