Sentence Case Converter
Capitalize the first letter of each sentence and lowercase the rest.
Paste text above and click Convert.
How to Use This Tool
- Paste or type the text you want to reformat into the Sentence Case Converter input area at the top of the page.
- The Sentence Case Converter instantly transforms your text into the target case style as you type, with no button click required.
- Copy the converted result to your clipboard with one click and paste it wherever you need it.
Common Use Cases
- UI microcopy: Modern design systems (Material, Atlassian) use sentence case for buttons and labels: "Save changes" instead of "Save Changes".
- Email subject lines: Marketers test sentence case ("Your order has shipped") against Title Case for open-rate impact.
- Restored ALL-CAPS text: Convert shouty marketing copy or yelling chat messages back to readable sentence case.
Frequently Asked Questions
What is sentence case?
Sentence case capitalizes only the first letter of the sentence and proper nouns: "Welcome to the dashboard". It's standard for body prose, UI labels in Material Design, and most modern documentation. Title Case capitalizes most words instead.
Does sentence case capitalize proper nouns automatically?
The converter applies basic rules and capitalizes the first letter of each sentence. It will not auto-detect proper nouns like "Paris" or "Microsoft"; review the output and manually correct names, brands, and place names after conversion.
How does sentence case handle text after colons?
Chicago Manual of Style capitalizes the first word after a colon only if it introduces a complete sentence or quotation. AP style lowercases it unless followed by a proper noun. The converter preserves whatever the input has after a colon.