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Case Converter

Switch text between UPPER, lower, Title, Sentence, camelCase and more. Convert text to uppercase, lowercase, title case, sentence case, camelCase, snake_case or kebab-case online. Free one-click case conversion for writers and developers.

Cet outil fonctionne à 100 % dans votre navigateur. Vos saisies ne sont jamais envoyées à un serveur : vous pouvez même passer hors ligne après le chargement de la page.

À propos de Case Converter

Fixing a paragraph typed with Caps Lock on, or turning a heading into proper title case, takes seconds with this converter. One click switches your text between UPPERCASE, lowercase, Title Case, Sentence case, aLtErNaTiNg case — plus the developer favourites camelCase, PascalCase, snake_case and kebab-case. The result appears instantly and copies to your clipboard in one tap, ready for documents, spreadsheets or code.

Comment utiliser Case Converter

  1. Paste your text into the input box.
  2. Click the case style you need — the text converts instantly.
  3. Review the result, then click Copy to grab it.
  4. Switch between styles freely to compare options.

Fonctionnalités clés

What is the difference between Title Case and Sentence case?
Title Case Capitalises The First Letter Of Every Major Word, while Sentence case only capitalises the first letter of each sentence — like a normal paragraph.
When would I use camelCase or snake_case?
Programmers use camelCase for JavaScript variables and functions, PascalCase for classes, snake_case for Python and SQL, and kebab-case for URLs and CSS classes.

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