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HTML Formatter and Beautifier

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HTML Formatter and Beautifier

Transform minified or messy HTML into clean, properly indented code. This tool takes raw HTML — whether compressed for production, copied from browser DevTools, or generated by a CMS — and formats it with consistent indentation and line breaks for easy reading and editing.

Cómo utilizar

Paste your HTML into the input area or upload an HTML file. Choose your preferred indentation style (2 spaces, 4 spaces, or tabs). The formatted output appears instantly with syntax highlighting. Optionally enable “Preserve existing blank lines” to keep intentional spacing, or “Remove HTML comments” to strip comments from the output.

Características

Real-time Formatting – Output updates automatically as you type or change settings
Indentación Configurable – Elige entre 2 espacios, 4 espacios o tabulaciones
Preserved Blocks – Content inside pre, code, script, style, and textarea tags stays untouched
Smart Element Handling – Inline elements stay on one line while block elements get proper indentation
Resaltado de Sintaxis – Output is displayed with HTML syntax highlighting for clarity
Subir archivo – Upload HTML files directly instead of pasting

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 Preguntas frecuentes

What is the difference between HTML minification and beautification?

HTML minification removes all unnecessary whitespace, comments, and formatting to reduce file size for faster page loads. Beautification is the reverse — it adds indentation, line breaks, and consistent spacing to make the code human-readable. Minified HTML is ideal for production, while beautified HTML is easier to debug and maintain during development.
Does formatting HTML change how it renders in the browser?

No. Browsers ignore most whitespace between HTML tags when rendering a page. Whether your HTML is minified into a single line or beautifully indented, the visual output in the browser will be identical. The only exception is content inside preformatted elements like pre and textarea, where whitespace is significant — which is why formatters preserve those blocks.
Why do block-level and inline elements get indented differently?

Block-level elements (like div, p, section, ul) create new visual blocks in the document flow and typically contain other elements, so they benefit from indentation to show nesting. Inline elements (like span, strong, a, em) flow within text content and indenting them would break readability by splitting sentences across lines. Proper formatters respect this distinction from the HTML specification.