@toolsnap/css-minifier-tool

A lightweight, zero-dependency CSS minifier and beautifier tool for optimizing and formatting CSS code in Node.js or the browser.

Features

• CSS Minification — Remove whitespace, comments, and unnecessary characters to reduce file size
• CSS Beautification — Format compressed CSS into readable, well-indented code
• Configurable Output — Control indentation, newline style, and comment preservation
• Zero Dependencies — Lightweight and fast with no external packages required
• Browser & Node.js — Works in both environments

Installation

npm install @toolsnap/css-minifier-tool

Usage

Minify CSS

const { minify } = require('@toolsnap/css-minifier-tool');

const input = `
  /* Header styles */
  .header {
    display: flex;
    align-items: center;
    background-color: #ffffff;
    margin-bottom: 20px;
  }
`;

const result = minify(input);
console.log(result);
// .header{display:flex;align-items:center;background-color:#fff;margin-bottom:20px}

Beautify CSS

const { beautify } = require('@toolsnap/css-minifier-tool');

const compressed = '.header{display:flex;align-items:center;background-color:#fff}';

const formatted = beautify(compressed, { indent: 2 });
console.log(formatted);
// .header {
//   display: flex;
//   align-items: center;
//   background-color: #fff;
// }

Use Cases

• Production Builds — Minify CSS assets before deployment to reduce page load times
• Development — Beautify third-party CSS libraries for easier debugging and reading
• Build Pipelines — Integrate into Webpack, Gulp, or Rollup workflows
• CSS Analysis — Parse and reformat CSS for linting and code review

Best Practices

1. Always keep original source files — Minify copies, not your source CSS
2. Enable gzip/brotli compression — Minified CSS combined with server compression yields the best results
3. Test before and after — Verify minified output renders identically to the original
4. Use source maps in development — Map minified CSS back to original files for easier debugging
5. Benchmark your CSS — Measure the actual size reduction to track optimization gains

License

MIT

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