JavaScript Minifier
Minify JavaScript code by removing whitespace, comments, and unnecessary characters. This reduces file size for faster loading times in production. Perfect for optimizing JavaScript files before deployment.
When to use this tool
You want smaller JS bundles for production delivery.
You need a quick minified snippet for inline scripts.
Examples
Compact inline script
Input
function greet(name) {
return `Hello ${name}`;
}Output
function greet(n){return`Hello ${n}`;}Use source maps for debugging in production.
Developer use cases
Minify one-off scripts before pasting into a CMS or tag manager.
Reduce size of simple embed widgets without a build step.
Common mistakes to avoid
Minifying code that relies on readable stack traces in production.
Assuming minification also bundles or transpiles code (it does not).
Format and behavior notes
Minification removes whitespace and comments only.
For full builds, use a bundler like Vite or Webpack.
Related Tools
Frequently Asked Questions
How do I minify JavaScript?
Paste your JavaScript code into the input field and click Minify. The minified code will appear in the output field.
How much file size reduction can I expect?
File size reduction varies, but typically you can expect 20-50% reduction depending on the original code formatting.
Does minification break my code?
No, minification only removes whitespace and comments. The functionality of your code remains exactly the same.