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Formateur et minificateur CSS

Formater ou minifier du CSS

Fonctionne dans votre navigateur · Aucun envoi

L’outil et les instructions de cette page sont en anglais pour le moment. Il fonctionne de la même façon : tout se passe dans votre navigateur.

Make it
  • Rien ne quitte votre appareil
  • Aucune limite de taille imposée par un serveur
  • Sans inscription, sans filigrane
  • Gratuit

How to format or minify CSS

  1. Paste your CSS or open a .css file.
  2. Choose readable (beautify) or small (minify).
  3. Copy or download the result.

Safe minifying

  • Comments are removed, except those starting with /*! (usually licenses).
  • Text in quotes is never changed, and spaces that matter, such as around + and - in calc() or before ":hover" in "a :hover", are kept.
  • The last semicolon before } and spaces around { } ; , and > are dropped.

Beautifying

Readable CSS is produced by js-beautify, a widely used open-source formatter: one declaration per line, consistent indentation and a blank line between rules.

Questions fréquentes

How much smaller does minified CSS get?

Typically 15 to 30% before compression. Your server's gzip or Brotli compression saves much more on top.

Is my CSS uploaded?

No. Everything happens in your browser, and the page is blocked from uploading anything.