JavaScript Minifier
Minify JavaScript code to reduce file size. Remove comments, whitespace, and compress scripts. Free online JavaScript minifier.
How to Minify JavaScript
- 1 Paste your JavaScript code into the input area
- 2 Click Minify JS to compress the code
- 3 View the size reduction statistics
- 4 Copy the minified code or download it as a file
- 5 Use Clear to start with a new file
Frequently Asked Questions
Is my code or data stored anywhere? ▼
No. All developer tools process data locally in your browser. Nothing is sent to any server or logged.
Can I use these tools offline? ▼
Yes! After the initial page load, most developer tools work without an internet connection.
Are there API limits? ▼
No limits. Since processing happens in your browser, you can use the tools as much as you need.
Is the output compatible with production use? ▼
Yes. Our tools produce standard-compliant output suitable for production environments.
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Last updated: January 15, 2026 · v2.1