Case Converter
Paste your text, pick a case style, and copy the converted result. Title Case capitalizes every word, Sentence case capitalizes the start of each sentence (and fixes a lone "i"), and alternating case makes the classic mOcKiNg pattern.
Frequently asked questions
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every word ("The Quick Brown Fox"), while Sentence case only capitalizes the first letter of each sentence and proper pronoun "I" ("The quick brown fox").
Does the converter change my original text?
No — the converted text appears in a separate result box, so your original stays untouched until you decide to copy the result.
Can I convert a whole document at once?
Yes. There is no length limit beyond what your browser can hold; conversion is instant even for book-length text.
More text tools
Case Converter runs entirely in your browser — your text never leaves this device.