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 processed in your browser and is never uploaded.
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.