Case Conversion

Transform file names between different text cases for consistent naming conventions

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Text Case Transformation

Convert file names between different text cases to maintain consistency and follow naming conventions. Perfect for standardizing file collections and improving organization.

🔤 Uppercase

Convert all text to uppercase letters. Ideal for headers, titles, and formal document naming.

🔤 Lowercase

Convert all text to lowercase letters. Perfect for web-friendly file names and consistent formatting.

📝 Title Case

Capitalize the first letter of each word. Great for document titles and professional file naming.

📄 Sentence Case

Capitalize only the first letter of the first word. Perfect for descriptive file names and natural language.

🔄 Toggle Case

Reverse the case of each letter. Useful for correcting inconsistent case usage.

🎯 Selective Conversion

Apply case conversion to specific parts of file names. Target only the filename or extension as needed.

Available Case Types

Choose from multiple case conversion options to match your specific needs and preferences.

🔤
Uppercase

Convert all text to uppercase

MY DOCUMENT.PDF
🔤
Lowercase

Convert all text to lowercase

my document.pdf
📝
Title Case

Capitalize first letter of each word

My Document.Pdf
📄
Sentence Case

Capitalize only the first letter

My document.pdf
🔄
Toggle Case

Reverse the case of each letter

mY dOCUMENT.pdf
🎯
Selective

Apply to specific parts only

my document.PDF

Case Conversion Examples

See how different case conversions can transform your file organization.

🔤 Lowercase Conversion

Convert all text to lowercase for web-friendly file names.

Before
My Document.PDF
Report_Final.DOCX
Notes & Updates.TXT
After
my document.pdf
report_final.docx
notes & updates.txt
Case Type: Lowercase
Scope: Entire filename
Result: Web-friendly, consistent formatting

📝 Title Case Conversion

Capitalize the first letter of each word for professional document naming.

Before
my document.pdf
report_final.docx
notes & updates.txt
After
My Document.Pdf
Report_Final.Docx
Notes & Updates.Txt
Case Type: Title Case
Scope: Entire filename
Result: Professional, formal appearance

📄 Sentence Case Conversion

Capitalize only the first letter for natural, readable file names.

Before
MY DOCUMENT.PDF
REPORT_FINAL.DOCX
NOTES & UPDATES.TXT
After
My document.pdf
Report_final.docx
Notes & updates.txt
Case Type: Sentence Case
Scope: Entire filename
Result: Natural, readable formatting

🎯 Selective Case Conversion

Apply case conversion only to specific parts of the filename.

Before
my document.PDF
report_final.DOCX
notes & updates.TXT
After
my document.pdf
report_final.docx
notes & updates.txt
Case Type: Lowercase
Scope: Extension only
Result: Consistent extension formatting

Advanced Case Conversion Features

🎯 Selective Application

Apply case conversion to specific parts of file names: filename only, extension only, or entire name.

🔧 Smart Word Detection

Intelligent word boundary detection for accurate title case and sentence case conversion.

📝 Special Character Handling

Proper handling of special characters, numbers, and symbols during case conversion.

🔄 Batch Processing

Apply case conversion to thousands of files at once with consistent results.

⚡ Preview Mode

Preview case conversion results before applying changes to ensure accuracy.

🛡️ Safe Operation

Safe case conversion with undo support and error handling for edge cases.

Perfect for These Use Cases

🌐 Web Content

Convert file names to lowercase for web-friendly URLs and consistent online presentation.

📄 Document Management

Standardize document file names with title case for professional, formal appearance.

📸 Photo Organization

Convert photo file names to sentence case for natural, readable descriptions.

🎵 Media Files

Standardize media file names with consistent case formatting for better organization.

📊 Data Files

Convert data file names to uppercase for formal, technical documentation.

🔄 Archive Cleanup

Clean up inconsistent case usage in existing file collections for better organization.

Case Conversion Configuration

⚙️ Configuration Options

  • Case Type: Uppercase, lowercase, title case, sentence case, toggle case
  • Scope: Entire filename, filename only, extension only, custom selection
  • Word Boundaries: Smart detection of word boundaries for accurate conversion
  • Special Characters: Proper handling of numbers, symbols, and special characters
  • File Filtering: Apply to specific file types or exclude certain files
  • Preview Mode: Preview results before applying changes
  • Batch Processing: Process large file collections efficiently
  • Undo Support: Full undo functionality for all case conversion operations

⚠️ Best Practices

  • Use lowercase for web-friendly file names and URLs
  • Apply title case for formal document naming conventions
  • Use sentence case for natural, readable file descriptions
  • Preview case conversion results before applying to large collections
  • Consider file name length limits when applying case conversion
  • Test case conversion on a small subset of files first

Ready to Standardize Your File Names?

Transform your file collection with consistent case formatting. Choose from multiple case types and apply to thousands of files at once.

Start Case Conversion

Related Features

🔧 Regex Support

Combine case conversion with powerful regex patterns for advanced file renaming.

Learn More →

📋 Template System

Save your favorite case conversion settings as templates for quick reuse.

Learn More →

🔄 Undo System

Full undo support for all case conversion operations with history tracking.

Learn More →