JS Minifier/Beautifier
An online tool to minify or beautify JavaScript code.
* Performs basic minification. For production use, dedicated tools like Terser or esbuild are recommended.
How to Use the JS Minifier/Beautifier
This JavaScript minifier/beautifier tool lets you reduce JS file size (Minify) or format it for readability (Beautify). Paste your JavaScript code into the input field and click "Minify" to remove comments, whitespace, and line breaks for the smallest possible JS. Click "Beautify" to format it with proper indentation for readability.
What is JavaScript Minification?
JavaScript minification is the process of removing comments, unnecessary whitespace, and line breaks from JavaScript files to reduce file size. Minified JS behaves identically in browsers but transfers faster due to smaller file size. While bundlers like Webpack, Rollup, and esbuild have built-in minification, this tool provides a quick way to minify or beautify code.
Frequently Asked Questions (FAQ)
Q. How much can JS minification reduce file size?
A. Depending on the coding style, JS files with many comments and whitespace can typically see a 20-50% size reduction. The reduction percentage is shown in the tool.
Q. Can minified JavaScript be restored?
A. Use the "Beautify" feature to restore minified JS code to a readable format. However, original comments and variable names cannot be recovered.
Q. Is my JS code safe?
A. Yes, it is safe. All processing is completed within your browser, and input data is never sent to any server.