JavaScript Minifier
Minify JavaScript code to reduce file size
How to Use JavaScript Minifier
- 1Paste your JavaScript code into the input area.
- 2Click Minify to compress your code.
- 3View the compression stats showing size reduction.
- 4Copy the minified output using the Copy button.
About JavaScript Minifier
Minify JavaScript code online by removing comments, extra whitespace and newlines. Reduces file size for faster loading. Shows original and minified sizes with compression percentage.
Frequently Asked Questions
What does JavaScript minification do?
It removes comments (both // and /* */), extra whitespace, and unnecessary newlines from your code. The logic remains identical — only non-functional characters are removed.
Is this a full JavaScript minifier like Terser?
This is a lightweight minifier that handles comment and whitespace removal. For advanced optimizations like variable renaming and dead code elimination, use build tools like Terser or esbuild.
Will it break my code?
The minifier preserves string literals and regular expressions. However, for complex code with template literals or edge cases, always test the output before using in production.