Free Sentence Case Converter Online
Sentence case capitalizes only the first word of each sentence and proper nouns, leaving all other words in lowercase. This tool automatically restores standard prose casing from ALL CAPS text.
Convert every title and headline automatically with perfect capitalization rules.
100% Client-Side Privacy Guarantee
Your text is never sent to or stored on any server. All capitalization and formatting rules execute locally in your web browser.
How Sentence Case Works
- First Word Capitalization: The first letter following any period, exclamation mark, or question mark is capitalized.
- Uniform Clean Format: All accidental ALL CAPS and irregular capitalizations are normalized to clean lowercase.
- Ideal for Essays & Emails: Restores accidental Caps Lock typing instantly without retyping entire paragraphs.
How to Use Free Sentence Case Converter Online in 3 Simple Steps
Enter Text
Paste your unformatted or ALL CAPS text into the input area.
Auto-Format
The tool immediately capitalizes sentence starters and lowercases trailing letters.
Copy & Use
Click Copy to clipboard to paste into your document or email.
Frequently Asked Questions
What is Sentence Case?
Sentence case capitalizes only the first word of each sentence and proper nouns, leaving all other words in lowercase just like standard written prose.
Does this tool fix accidental Caps Lock typing?
Yes! Simply paste your ALL CAPS text and click Sentence Case to instantly restore standard sentence formatting.