Minificateur HTML

Shrink HTML by removing comments and unnecessary whitespace. Inline CSS and JavaScript are minified too.

100 % gratuit. Fonctionne entièrement dans votre navigateur : vos fichiers et données ne quittent jamais votre appareil et rien n'est envoyé à un serveur.

edit_noteInput

0 B · 0 lines

outputOutput

0 B · 0 lines

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À propos de cet outil

Minify HTML to cut page weight, or beautify it to read it clearly. The minifier is whitespace-aware rather than regex-based, so it understands where whitespace actually matters and never breaks your markup.

Comment utiliser cet outil

  1. Paste HTML contentInsert full HTML or snippet into the editor input.
  2. Choose minify or beautifyCompress for production delivery or expand for readability.
  3. Process and inspect outputVerify generated markup and check size or formatting differences.
  4. Copy result into workflowUse compact output in deployment or formatted output in editing/debugging.

Pourquoi l’utiliser

  • Reduces HTML payload size for faster transfer and render start.
  • Beautifies compact markup for easier debugging and audits.
  • Whitespace-aware processing protects meaningful text spacing.
  • Useful for static pages, templates, and embed snippets.

Usages courants

  • Optimizing landing pages before deployment.
  • Cleaning copied HTML snippets for documentation.
  • Inspecting minified third-party markup.
  • Preparing template output for review and QA.

Conseils pour de meilleurs résultats

  • Minify final build artifacts, not source templates under active editing.
  • Check rendered whitespace around inline elements after compression.
  • Keep backup of original source before heavy transformations.
  • Combine with CSS/JS minification for full page optimization.

Erreurs à éviter

  • Using regex-only minifiers that can break structural HTML.
  • Ignoring meaningful spacing in inline text contexts.
  • Treating minified markup as authoring source.
  • Skipping visual checks after aggressive compression.

Questions fréquentes

Yes, when it is done with a parser rather than regular expressions. This tool tracks tags, attributes, comments and text separately, so it knows the space between two inline elements is a real word break while the indentation between block elements is not. Content inside pre and textarea is left exactly as written.

Yes - inline style and script blocks are minified too, using the same safe tokenisers as the CSS and JS tools. JSON-LD and templating blocks are detected by their type attribute and deliberately left untouched.

Ordinary comments are, but conditional comments are kept. Those are markup rather than notes, and stripping them would break the legacy browser fallbacks some pages still ship.

Typically 20-40% on hand-written, well-indented HTML. Pages that are already generated by a build tool see less benefit. The exact saving is shown under the output.

Yes. HTML Minifier is free for normal use with no account required, and ToolBox does not add a watermark to your result.

Most tools in this category run in your browser so the file stays on your device. If a tool needs a temporary server job, files are handled for that job only and are not kept as a lasting archive.

No install needed. Open HTML Minifier in your browser, add your file or paste your input, then download or copy the result.

Yes on modern mobile browsers. For large files, a desktop browser is usually faster and more reliable.

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