A collection of command-line utilities for various development tasks, with a focus on web optimization.

The image optimization tool helps prepare images for web use by:

1. Cropping transparent areas - Removes all transparent padding/offset to reduce file size
2. WebP conversion - Converts images to WebP format for better compression
3. Quality control - Adjustable quality settings for optimal size/quality balance

1. Clone the repository:

git clone <repository-url>
cd clitools

2. Install dependencies:

go mod download

3. Build the CLI tool:

go build -o clitools .

Optimize an image by cropping transparent areas and converting to WebP:

# Basic usage
./clitools image optimize input.png output.webp

# With custom quality (0-100, default: 80)
./clitools image optimize input.jpg output.webp --quality 90

# Short flag version
./clitools image optimize input.png output.webp -q 75

Supported input formats:

• PNG
• JPEG/JPG
• SVG (vector graphics - rasterized to bitmap)
• Other formats supported by Go's image package

Output format:

• WebP (always, regardless of input format)

# Optimize a PNG with transparency
./clitools image optimize logo.png logo-optimized.webp

# Optimize a JPEG photo
./clitools image optimize photo.jpg photo-optimized.webp --quality 85

# Convert SVG to optimized WebP (rasterized)
./clitools image optimize icon.svg icon-optimized.webp --quality 90

# The tool will automatically add .webp extension if not provided
./clitools image optimize input.png output
# Output will be saved as: output.webp

This tool is specifically designed for web optimization:

1. Smaller file sizes - WebP format provides 25-35% better compression than JPEG/PNG
2. Faster loading - Removing transparent padding reduces unnecessary data
3. Better performance - Optimized images improve page load times
4. Maintained quality - Adjustable quality settings preserve visual fidelity

clitools/
├── main.go                    # Entry point
├── cmd/                       # CLI commands
│   ├── root.go               # Root command
│   └── image.go              # Image manipulation commands
├── internal/
│   └── image/
│       └── processor.go      # Image processing logic
└── go.mod                    # Go module file

To add a new tool to the CLI:

1. Create a new command file in cmd/
2. Add the command to cmd/root.go
3. Implement the logic in internal/

# Build for current platform
go build -o clitools .

# Build for multiple platforms
GOOS=linux GOARCH=amd64 go build -o clitools-linux-amd64 .
GOOS=windows GOARCH=amd64 go build -o clitools-windows-amd64.exe .
GOOS=darwin GOARCH=amd64 go build -o clitools-darwin-amd64 .

• Cobra - CLI framework
• go-webp - WebP encoding/decoding

This project is licensed under the MIT License - see the LICENSE file for details.