JS Minifier
Enterprise-grade professional JavaScript compression tool powered by Terser Engine. Supports ES6+, variable mangling, and dead code elimination for production builds.
Common Problems
How to minify es6 javascript online?
Absolutely. This tool supports modern JavaScript syntax including arrow functions, classes, and async/await.
Online terser minifier with mangle?
Unlike simple regex minifiers, Terser parses your code into an Abstract Syntax Tree (AST), enabling advanced optimizations like constant folding and dead code elimination.
Remove console logs from js for production?
Stripping debugging code (console.logs) before production releases. 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..
How to obfuscate javascript variables safely?
Yes. Mangle safely renames variables to single letters to save space. It avoids renaming global variables unless explicitly configured otherwise.
Best online tool for production js compression?
The engine will output high-performance, minified code suitable for production environments.
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 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
Input:
const secret = '123';
console.log(secret);
Output (Mangle ON, Drop Console ON):
const a='123';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.
FAQ
Is Mangle safe?
Yes. Mangle safely renames variables to single letters to save space. It avoids renaming global variables unless explicitly configured otherwise.
Does this support ES6?
Absolutely. This tool supports modern JavaScript syntax including arrow functions, classes, and async/await.
Why use Terser over simple compressors?
Terser performs deep analysis of your logic, removing code that is never reached and optimizing variable scopes, leading to much smaller and faster files.