Does it preserve , and ?

Yes. Whitespace inside these tags is meaningful, so it's left intact. Same for and bodies.

Is the output still valid HTML?

Yes for the default options - we only remove whitespace where it can't change rendering. With 'remove optional tags' on, the output is more compact but relies on HTML5's optional-element rules, so be sure your parser is HTML5-compliant.

Minificador HTML

Elimina espacios, comentarios y comillas del HTML - con informe antes/después en tu navegador.

Funciona en tu navegador

Pega HTML, obtén una versión minificada - con conteo de bytes y porcentaje ahorrado. Comentarios y espacios eliminados por defecto.

Quitar comentariosQuitar comillas de atributosAntes 220B → Después 162B (26% ahorrados)

Entrada

Salida

<!DOCTYPE html><html><head><title>Hello</title></head><body><h1 class="greeting">Hello world</h1> <pre>
  this whitespace
  is preserved
    </pre> </body></html>

Cómo usarla

Paste your HTML
Any HTML5 fragment or full document.
Pick aggressiveness
Default trims whitespace + comments. Aggressive also strips redundant quotes and optional tags.
Copy the minified output
Before/after byte counts shown next to the output.

¿Qué es?

An HTML minifier shaves bytes off an HTML document by removing whitespace and comments that don't affect rendering. The wins are biggest on hand-authored HTML with generous indentation; framework-generated output is usually already compact. Typical savings: 15-30% on raw HTML before gzip.

Cuándo usarla

Inlining HTML into a JSON response or an email template where every byte counts. Hand-optimising a critical-path page after a Lighthouse audit. Cleaning up exported HTML from a WYSIWYG editor that left a comment on every line.

Errores comunes

Running it on Jinja / Handlebars / Vue templates - the minifier doesn't understand template tags, so {{ stuff }} survives but the surrounding whitespace might disappear in unwanted places. Removing comments that the build pipeline actually needs (build-info pragmas, IE conditional comments). And expecting big wins on already-gzipped output - HTML minification stacks with gzip but the gzip pass does most of the heavy lifting.

Preguntas frecuentes

Does it preserve <pre>, <textarea> and <code>?: Yes. Whitespace inside these tags is meaningful, so it's left intact. Same for <script> and <style> bodies.
Is the output still valid HTML?: Yes for the default options - we only remove whitespace where it can't change rendering. With 'remove optional tags' on, the output is more compact but relies on HTML5's optional-element rules, so be sure your parser is HTML5-compliant.

Formateador XML

Embellece o compacta XML con indentación correcta - en tu navegador.

Codificador / Decodificador de entidades HTML

Codifica y decodifica entidades HTML, nombradas y numéricas.

Formateador y validador JSON

Formatea, minifica y valida JSON al instante.