Free JavaScript Minifier
Minify JavaScript code to reduce file size. Remove whitespace, comments, and optimize your JS files.
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Click any example to minify it instantly and see the file size reduction with our free AI-powered JS minifier.
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About JavaScript Minifier
Our free JavaScript Minifier compresses your JS code by removing unnecessary whitespace, comments, and redundant characters. Smaller JavaScript files load faster and execute quicker, improving your website's performance.
How to Use JavaScript Minifier
- 1Paste your JavaScript code into the input area.
- 2Click the "Minify JavaScript" button to compress your code.
- 3Review the compression statistics.
- 4Copy the minified JavaScript for your project.
Key Features
- Removes single and multi-line comments
- Collapses all whitespace
- Removes unnecessary semicolons
- Optimizes operator spacing
- Shows compression statistics
- Fast browser-based processing
Benefits
- •Faster script loading and execution
- •Improved page speed scores
- •Reduced bandwidth usage
- •Better user experience on slow connections
Frequently Asked Questions
Will minification break my JavaScript?
Basic minification (removing whitespace and comments) is safe. However, for complex code, always test the minified version before deploying to production.
How much can I reduce my JS file size?
JavaScript files typically reduce by 30-50% after minification, depending on the amount of comments and formatting in the original code.
What's the difference between minification and obfuscation?
Minification removes unnecessary characters to reduce file size. Obfuscation transforms code to make it harder to read and reverse-engineer. This tool only performs minification.