JavaScript Minifier Tool
Minify your JavaScript files to reduce size and improve website performance
Enter Your JavaScript
0
Original Size (chars)
0
Minified Size (chars)
Minifying JavaScript…
Security Note:
Only minify trusted JavaScript code. Minifying can make debugging more difficult, so always keep the original source files.
Minification Results
JavaScript Minification
// Minified JavaScript will appear here
Original Size:
0 chars
Minified Size:
0 chars
Reduction:
0%
Savings Ratio:
0:0
Formula: Reduction = (Original – Minified) ÷ Original × 100%
How JavaScript Minification Works
JavaScript minification reduces file size by:
- Removing comments and whitespace
- Shortening variable and function names
- Removing console statements for production
- Optimizing boolean expressions
- Simplifying if-else statements
// Before Minification
function calculateTotal(price, quantity) {
let total = price * quantity;
return total;
}
// After Minification
function c(p,q){return p*q}
Enter JavaScript code to minify and see the results here
Minification History
Your minification history will appear here
About JavaScript Minification
JavaScript minification is the process of removing unnecessary characters from JavaScript files without changing their functionality.
- Faster Loading: Smaller files load faster, improving page speed
- Reduced Bandwidth: Less data transfer for users
- Better SEO: Page speed affects search engine rankings
- Obfuscation: Minified code is harder to read and reverse-engineer
- Production Ready: Minified code is optimized for production use
Common minification techniques include removing whitespace, shortening variable names, and eliminating dead code.
Important: Always test minified code thoroughly. Some minification can break code if not done carefully. Keep original source files for development.
