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aratio-gen
aratio-gen/dist/index.js

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Readme

aratio-gen

CLI tool for generating placeholder images with common aspect ratios used in digital advertising and applications.

Features

Generate images with standard aspect ratios: 9:16, 2:3, 3:4, 4:5, 1:1, 4:3, 3:2, 16:9
Interactive command-line interface
Randomized pixel patterns for visual distinction
Large aspect ratio labels for easy identification
Support for PNG, JPEG, GIF, BMP, and TIFF formats
Batch generation capabilities (1-100 images per aspect ratio)
Configurable output dimensions

Installation

Using npx (no installation required)

npx aratio-gen

Global installation

npm install -g aratio-gen
aratio-gen

Local development

git clone <repository-url>
cd aratio-gen
npm install
npm run build

Usage

After installation, run:

aratio-gen

Or use directly without installation:

npx aratio-gen

Interactive Options

Aspect Ratios - Select one or more ratios
Quantity - Number of images per ratio (1-100)
Format - Image format (PNG, JPEG, GIF, BMP, TIFF)
Base Width - Width in pixels (100-4000)
Output Directory - Destination folder

Output

Files are named: aratio-gen_<aspect-ratio>_<index>.<format>

Example: aratio-gen_16x9_1.png

Development

npm run dev    # Run with ts-node
npm run build  # Compile TypeScript
npm run clean  # Remove build artifacts

Requirements

Node.js >= 18.0.0
TypeScript 5.4.0

License

MIT