Sentence Case Converter - Free, Instant, In Your Browser
Paste text typed in ALL CAPS or random casing to get clean sentence case: lowercase throughout, with each sentence starting with a capital letter.
How to use Sentence Case
- 1Paste your text or data into the input box above.
- 2Sentence Case runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is only processed temporarily for the conversion and is automatically deleted within 24 hours.
Frequently Asked Questions
How does this detect where a new sentence starts?
It capitalizes the first letter of the text and the first letter after '.', '!', or '?' followed by a space.
Will it fix casing inside proper nouns or acronyms?
No - it lowercases everything first, so names and acronyms will need manual re-capitalizing afterward.