Crate image_optimizer 

Image Optimizer

A high-performance CLI tool for optimizing images written in Rust.

This crate provides image optimization capabilities for JPEG, PNG, WebP, and SVG formats with support for parallel processing, quality control, resizing, and backup creation.

Features

• Multi-format support: JPEG (mozjpeg), PNG (oxipng with zopfli), WebP, SVG (regex-based)
• Parallel processing: Concurrent optimization using rayon
• Flexible output: In-place optimization or separate output directory
• Quality control: Adjustable quality settings and lossless mode (raster formats only)
• Image resizing: Optional resizing with --max-size parameter (raster formats only)
• Backup support: Create backup files before optimization
• Progress tracking: Real-time progress bar with file-by-file status
• Self-updating: Built-in update mechanism via GitHub releases

Architecture

The crate is organized into distinct modules following a one-function-per-file pattern:

• cli - Command-line interface components
• file_ops - File system operations and utilities
• optimization - Image optimization functionality
• updater - Self-update functionality

Usage

# Optimize all images in a directory recursively
image-optimizer -i ./images -r

# Optimize with custom quality and backup
image-optimizer -i input_dir -o output_dir --quality 90 --backup

# Resize and optimize with lossless compression
image-optimizer -i images --max-size 1024 --lossless

Modules

cli

Command-line interface components.

file_ops

File system operations and utilities.

optimization

Image optimization functionality.

updater

Self-update functionality.