JavaScript Minifier

Minify JavaScript code to reduce file size and improve load times

Remove console.log

Input JavaScript

Note: This minifier handles standard JavaScript well. For production builds with advanced syntax (decorators, dynamic imports, complex template literals), use a build tool like Terser or esbuild.

Minified Output

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What is JavaScript Minifier?

Free online javascript minifier to minify your JavaScript code to reduce file size and speed up website loading.

The tool removes whitespace, comments, and unnecessary characters while preserving functionality. See the original and minified file sizes with a percentage reduction report. Ideal for optimizing production JavaScript bundles when you need a quick minification without a build tool setup. No signup required.

How to Use JavaScript Minifier

1Paste your JavaScript code into the input area
2Click 'Minify' to compress the code
3Review the minified output and file size reduction stats
4Copy the minified code for your production build

Frequently Asked Questions

JavaScript minification removes unnecessary characters from code - whitespace, line breaks, comments, and shortens variable names where possible - without changing functionality. This reduces file size, leading to faster page loads and lower bandwidth usage.

Basic minification (removing whitespace and comments) is very safe and won't break your code. The tool preserves all functional code including strings, regex patterns, and template literals.

Typical savings range from 20% to 60% depending on coding style. Well-commented code with generous whitespace will see the greatest reductions. The tool shows exact before and after file sizes.

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