✨ Code Beautifier — HTML, CSS & JS Formatter

Beautify and format HTML, CSS, and JavaScript code with configurable indentation. Paste messy code and get clean, readable output instantly. Free online code formatter.

Input

Beautified Output

How to Use

Select the language

Choose HTML, CSS, or JavaScript using the tabs at the top. Each language applies its own formatting rules.

Paste and configure

Paste your minified or unformatted code in the left panel. Choose your preferred indent size (2 spaces, 4 spaces, or tab).

Beautify and copy

Click Beautify (or Ctrl+Enter). The formatted code appears on the right. Click Copy to copy it to your clipboard.

Frequently Asked Questions

What languages are supported? +

HTML, CSS, and JavaScript. Switch between them using the tabs at the top. Each language uses language-specific formatting rules.

What library powers the formatter? +

js-beautify v1.14, loaded on demand from cdnjs. It is the same library bundled in VS Code and used by millions of developers.

Can it format minified code? +

Yes — paste any minified HTML, CSS, or JS and click Beautify. The output will be properly indented and human-readable.

Is the library loaded only when needed? +

Yes. js-beautify (three files, ~90 KB combined) is only fetched when you click Beautify for the first time, keeping the page load fast.

Guía: Embellecedor de Código HTML/CSS/JS

¿Qué es?

Reformatea código con estructura inconsistente o minificada aplicando indentación, espaciado y saltos de línea consistentes. No cambia la funcionalidad — solo limpia el código. Diferente a Prettier (más opinionado) o un linter (reporta errores).

Cómo usar

Selecciona el lenguaje: HTML, CSS o JavaScript.
Pega tu código en la entrada.
Configura la indentación: 2 espacios, 4 espacios o tabs.
Embellece (Ctrl+Enter) y copia.

Consejos

Para proyectos en equipo, usa Prettier con .prettierrc compartido.
Integra en CI/CD para verificar automáticamente el formato.
No embellezas HTML minificado de producción antes de entender los cambios necesarios.