Sentence case Converter
Capitalize the first letter of every sentence, lowercase the rest.
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About the Sentence case Converter
Sentence case is the natural capitalization of everyday writing — the first letter of each sentence is capitalized and everything else stays lowercase. It is the house style of most email clients, UI copy and European headings, and the quickest way to make pasted ALL CAPS or Title Case text readable again.
The converter detects sentence boundaries after periods, exclamation marks, question marks and line breaks, and fixes the standalone pronoun "i" to "I". Paste a messy email draft or a document excerpt and get clean, professional prose back.
How to use it
- 1Paste the text you want to normalize — an email body, a document paragraph or pasted caps-lock text.
- 2The sentence-cased version appears instantly: first letters capitalized, the rest lowercased.
- 3Copy the result with one click and paste it back into your draft.
Frequently asked questions
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