What is
What is JS Minifier?
Terser is the gold standard for JavaScript minification, used by Vite, Webpack, and Next.js. Unlike simple regex minifiers, Terser parses your code into an Abstract Syntax Tree (AST), enabling advanced optimizations like constant folding and dead code elimination.
How to use
How to use JS Minifier
Paste your code, select optimization flags like 'Mangle' to shrink variable names or 'Drop Console' to clean up debugging logs, then click 'Run Optimizer'. The engine will output high-performance, minified code suitable for production environments.
Example
Example
Input:
const secret = '123';
console.log(secret);
Output (Mangle ON, Drop Console ON):
const a='123';Common use cases
Common use cases
1. Compressing individual JS assets for small-scale projects.
2. Obfuscating proprietary logic to prevent easy reverse engineering.
3. Stripping debugging code (console.logs) before production releases.
4. Quick testing of how specific Terser configurations affect your bundle size.
Frequently asked questions