🖼️ image-optimize-cli

A zero-dependency CLI tool for viewing image metadata and basic optimization info for PNG, JPEG, and WEBP formats.

Install

npm install -g image-optimize-cli

Usage

# Show basic info for a single image
image-optimize photo.jpg

# Batch process with glob patterns
image-optimize images/*.png

# Verbose output (bit depth, color type, components)
image-optimize *.jpg --verbose

# List supported formats
image-optimize --list

Examples

$ image-optimize screenshot.png
  screenshot.png                  PNG    1920×1080      245.8 KB

$ image-optimize *.jpg *.png --verbose
  photo.jpg                       JPEG   800×600        156.2 KB
    Components: 3
  logo.png                        PNG    256×256        12.5 KB
    Color: RGBA
    Bit depth: 8

$ image-optimize --list

  Supported Image Formats:

  Format   | Detection | Info Parsed
  ---------|-----------|---------------------------
  PNG      | ✓         | Dimensions, bit depth, color type
  JPEG     | ✓         | Dimensions, precision, components
  WEBP     | ✓         | Dimensions, subtype (VP8/VP8L/VP8X)

Options

| Option | Alias | Description | |--------|-------|-------------| | --quality <1-100> | -q | Output quality (default: 80) | | --output <dir> | -o | Output directory (default: ./optimized) | | --verbose | -v | Show detailed image metadata | | --list | | List supported formats | | --help | -h | Show help |

Supported Formats

• PNG — dimensions, bit depth, color type (Grayscale/RGB/Indexed/RGBA)
• JPEG — dimensions, precision, number of components
• WEBP — dimensions, subtype (lossy VP8 / lossless VP8L / extended VP8X)

License

MIT