Text Tools

Sentence Case Converter

Capitalize the start of sentences while lowering accidental internal capitals.

Free to use No account needed Quick result

Tool workspace

Private by design

Your result

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About the Sentence Case Converter

The Sentence Case Converter first normalizes letter case and then capitalizes the opening letter after sentence-ending punctuation. It is designed for repairing text copied from all-caps sources.

How to use the Sentence Case Converter

  1. Paste the affected sentences.
  2. Run sentence case conversion.
  3. Restore any intentional capitalization for names and abbreviations.

Practical tips

  • Review initials and product names because they need human context.
  • Well-formed ending punctuation improves sentence boundary detection.
Helpful answers

Sentence Case Converter FAQs