📝 Sentence Case Converter

Professional sentence case converter that intelligently transforms text to proper sentence capitalization. Features smart punctuation detection, abbreviation handling, formatting preservation, and batch processing. Perfect for editing documents, emails, and content that needs proper sentence structure.

Paste your text here to convert it to proper sentence case
Keep original paragraphs, line breaks, and spacing structure intact
Intelligently detect sentence boundaries, handle abbreviations (Mr., Dr., U.S.A.), and avoid capitalizing after decimals

Sentence Case Results:

📝 SENTENCE CASE

Advanced Text → Proper Sentence Capitalization

Smart punctuation detection with formatting preservation

📥 Original Text

hello world. this is a TEST! how are YOU doing? mr. smith lives in the U.S.A. the price is $3.99 today.

📤 Sentence Case

Hello world. This is a test! How are you doing? Mr. Smith lives in the U.S.A. The price is $3.99 today.

🧠 Smart Detection Features

Abbreviations
Mr., Dr., U.S.A., etc.
🔢
Decimals
$3.99, 4.5 hours
Punctuation
.!? detection

📊 Conversion Analysis

4
Sentences
23
Words
8
Changes
Formatted

💡 Smart Processing Features

Preserves Formatting
Line breaks & spacing
Handles Abbreviations
Mr., Dr., U.S.A., etc.
Batch Processing
Multiple paragraphs

🚀 Perfect For:

Document editing, email composition, content creation, academic writing, and professional communication formatting.

How to Use This Sentence Case Converter

How to Use the Sentence Case Converter:

  1. Paste your text into the input field
  2. Enable "Smart punctuation handling" for intelligent abbreviation detection
  3. Choose "Preserve formatting" to maintain line breaks and paragraph structure
  4. Click "Convert to Sentence Case" to transform your text
  5. Review the converted text with before/after comparison
  6. Copy the result or download it as a text file

Pro Tips: The tool automatically handles common abbreviations like Mr., Dr., U.S.A., and avoids capitalizing after decimal numbers. Perfect for editing drafts, emails, and documents that need proper sentence structure!

How It Works

Advanced Sentence Case Processing:

Our sentence case converter uses sophisticated algorithms to intelligently transform text:

  1. Smart Sentence Detection: Identifies sentence boundaries using periods, question marks, and exclamation points while avoiding false positives with abbreviations
  2. Abbreviation Recognition: Maintains proper capitalization for common abbreviations like Mr., Dr., Ph.D., U.S.A., etc.
  3. Decimal Number Handling: Avoids capitalizing text after decimal points in prices, measurements, and numerical data
  4. Formatting Preservation: Keeps original paragraph breaks, line spacing, and document structure intact
  5. Batch Processing: Processes multiple sentences and paragraphs simultaneously while maintaining context
  6. Unicode Support: Handles international characters and symbols correctly

Algorithm Features: The converter uses regex patterns combined with contextual analysis to ensure accurate sentence case conversion without disrupting document formatting or specialized text elements.

When You Might Need This

Frequently Asked Questions

How does the smart punctuation detection work with abbreviations?

Our smart detection recognizes common abbreviations like Mr., Dr., Ph.D., U.S.A., etc. and prevents incorrect capitalization after their periods. The algorithm uses a comprehensive abbreviation database and contextual analysis to distinguish between abbreviation periods and sentence-ending periods, ensuring accurate sentence case conversion without disrupting proper nouns and titles.

Will the converter preserve my document's original formatting and line breaks?

Yes! When you enable 'Preserve formatting,' the tool maintains your original paragraph structure, line breaks, indentation, and spacing. This makes it perfect for editing documents, emails, and articles where formatting is important. The converter processes text while keeping the visual structure intact.

Can I convert multiple paragraphs or long documents at once?

Absolutely! The sentence case converter supports batch processing and can handle large amounts of text including multiple paragraphs, documents, and even entire articles. There's no practical limit to the text length, making it ideal for processing lengthy content efficiently.

How does the tool handle numbers, prices, and decimal values?

The converter intelligently recognizes decimal numbers, prices, measurements, and other numerical data to avoid incorrect capitalization after decimal points. For example, '$3.99 today' stays as '$3.99 today' rather than becoming '$3.99 Today.' This ensures accurate processing of technical and commercial content.

What's the difference between this tool and a basic case converter?

Our specialized sentence case converter offers advanced features beyond basic capitalization: smart abbreviation handling, decimal number recognition, formatting preservation, contextual sentence boundary detection, and batch processing. While basic converters might incorrectly capitalize after 'Mr.' or decimal points, our tool understands context for professional-quality results.