Case Converter Tool - Convert Text Case Online

The Case Converter Tool is a free online text processing utility that quickly converts the case of English letters. Whether you're writing code, editing documents, or processing text data, this tool helps you complete case conversions efficiently.

Conversion Modes

• UPPERCASE: Convert all letters to uppercase (UPPERCASE)
• lowercase: Convert all letters to lowercase (lowercase)
• tOGGLE cASE: Swap uppercase to lowercase and vice versa (tOGGLE cASE)
• Capitalize Each Word: Capitalize the first letter of each word (Capitalize Each Word)
• uncapitalize: Convert the first letter to lowercase (uncapitalize)

Use Cases

• Code Writing: Quickly convert variable names and constant names
• Document Editing: Standardize case style in titles or text
• Data Processing: Batch convert text data case format
• SEO Optimization: Adjust URL and title case format
• Text Formatting: Quickly fix case errors in text

Tool Features

• ✅ 100% local processing, no data upload
• ✅ Multiple conversion modes for different needs
• ✅ Real-time conversion with instant results
• ✅ One-click copy for easy use
• ✅ Completely free, no registration required

Frequently Asked Questions

1. Does this tool support non-English characters?

This tool is primarily designed for English letter case conversion. Non-English characters that don't have case distinctions will remain unchanged.

2. Will conversion preserve punctuation and spaces?

Yes, conversion only affects English letters. Punctuation marks, numbers, spaces, and other characters remain unchanged.

3. What's the difference between "Capitalize Each Word" and "uncapitalize"?

"Capitalize Each Word" capitalizes the first letter of every word, while "uncapitalize" only converts the first letter of the entire text to lowercase, leaving other characters unchanged.

4. Is my data safe?

Absolutely! All conversions are performed locally in your browser. No data is uploaded to servers, and we don't store or record any of your data.