How to change text case
- Paste or type your text.
- Click a case style button. The text changes instantly in the box.
- Not what you wanted? Click Undo to go back one step, or try another style.
- Click Copy text to use it elsewhere.
The case styles explained
Sentence case capitalises the first letter of each sentence and makes the rest lowercase, like normal writing. lower case and UPPER CASE change every letter. Title Case capitalises the important words in a headline but keeps short words such as “a”, “of”, “and” and “the” lowercase unless they start or end the title, following common style-guide rules. Capitalized Case capitalises the first letter of every word. tOGGLE cASE flips each letter, which is perfect for fixing text typed with caps lock on, and aLtErNaTiNg alternates letters for playful posts.
The converter uses your browser’s language-aware case rules, so letters like é, ñ, ß and Greek or Cyrillic characters change correctly. Nothing is sent to a server.
Everyday uses
- Fixing a paragraph accidentally typed with caps lock on.
- Formatting blog and article headlines in title case.
- Cleaning up names and addresses copied in all capitals.
- Converting shouty all-caps messages into readable sentence case.
Case converter FAQ
Does sentence case keep proper nouns capitalised?
No tool can reliably know every name, so sentence case lowercases them. Check names, places and brands afterwards. The word “I” is capitalised automatically.
Which title case rules are used?
Short articles, conjunctions and prepositions stay lowercase in the middle of a title, similar to AP and Chicago style. Words after a colon are capitalised.
Can I undo more than once?
Undo restores the text from before your last change. Copy important versions if you plan to try many styles.