Minificador de JavaScript

Minifica JavaScript en línea con Terser: mangling, eliminación de código muerto y ahorro mostrado, todo en tu navegador

Mangle variable names

JavaScript Input

Minified JS

JavaScript Minifier Tips

Powered by Terser - the same engine behind webpack, Vite and Rollup production builds.
Mangling renames local variables to short names; disable it if you need readable stack traces.
Dead code like unused functions is dropped automatically by the compressor.
Minified ES modules still need a bundler for import/export resolution - minify bundles, not modules.

Características Profesionales de Procesamiento de JavaScript Minifier

Todo lo que necesita para trabajar con datos JavaScript Minifier de manera eficiente y profesional

Terser Engine

The same battle-tested minifier that powers production builds of webpack and Vite.

Clean Output

Comments stripped, whitespace collapsed, code restructured for minimal size.

Dead Code Removal

Unused variables, unreachable branches and redundant logic disappear automatically.

Mangle Control

Toggle variable mangling with one checkbox - readable when you need it, tiny when you ship it.

Size Report

Bytes before and after, plus the exact percentage saved, on every run.

Private by Design

Your source code stays in the browser tab. Nothing is uploaded, ever.

Cómo Funciona

Pasos sencillos para procesar su JavaScript Minifier como un profesional

Paste Your JavaScript

Copy a function, module bundle, or script into the input area.

Choose Options

Keep mangling on for smallest size, or turn it off for debuggable output.

Click Minify

Terser compresses the code in your browser and reports the savings.

Copy the Output

Copy the minified script into your build, CDN, or production page.

Formateador y Validador Profesional de JavaScript Minifier

JavaScript Minifier processing runs entirely in your browser — no uploads, no accounts, no limits.

Desarrollado por Expertos

The JavaScript Minifier formatting engine runs locally in your browser using established parsers and standard algorithms. Nothing is hidden — open your browser dev tools and watch it work.

Características Técnicas Clave:

• Real Terser engine (the standard for JS minification) running fully in your browser
• Compressor removes dead code, unreachable branches and redundant logic
• Optional mangling shortens variable and function names
• Byte-accurate size report with before/after comparison and savings percentage
• Engine loads lazily from CDN - the page stays fast until you click Minify

Confiable y Seguro

Your data stays in your browser: nothing is uploaded, stored, or logged. Close the tab and it is gone.

Seguridad y Privacidad:

• 100% client-side minification - your source code never leaves the browser
• No tracking, cookies or data logging
• HTTPS encryption for secure connections
• Private or proprietary code stays on your device
• GDPR and CCPA compliant approach

Por Qué los Profesionales Eligen EZ Formatter

100%

Client-side processing

Data sent to servers

Tools in the workbench

Your data stays in your browser

Preguntas frecuentes

Respuestas a preguntas comunes sobre el formateo de Js Minifier

Yes, completely free with no registration. All minification happens locally in your browser.

Terser - the industry-standard minifier used by webpack, Vite, Rollup and many other bundlers for their production builds.

Mangling renames local variables and functions to 1-2 character names for extra savings. Enable it for production; disable it when you need readable stack traces or debug the output.

It can compress the syntax, but module specifiers are left as-is. Bundle your code first (e.g. with a bundler), then minify the bundle for the best result.

Typical well-commented, readable source shrinks 40-60% with mangling enabled; already-compact code shrinks less. The size report shows the exact savings.