Input
Output
Sentence case output will appear here…
What This Tool Does
Sentence case capitalizes the first letter of each sentence and lowercases all other letters. The tool recognizes standard sentence-ending punctuation (period, exclamation mark, question mark) and restores proper case after each one. This is useful for correcting text that was accidentally typed in all-caps, title case, or toggle case, and for normalizing content before publishing.
Sentence Case vs. Title Case
- Sentence case capitalizes only the first word of each sentence (and proper nouns, if the source text has them). Use it for body copy, product descriptions, and UI labels.
- Title case capitalizes most words, following headline capitalization rules. Use it for article headings, book titles, and page titles.
- Neither style should be applied universally — choose based on the content type and your style guide.