Case Converter

Convert text between different cases: uppercase, lowercase, title case, camelCase, snake_case, kebab-case. Free online case converter.

Case Converter

What this tool does

The Case Converter is a text transformation tool that converts text between different case formats. It supports seven different case styles: uppercase, lowercase, title case, sentence case, camelCase, snake_case, and kebab-case. Each case style has specific rules for capitalization and word separation.

This tool is essential for developers, content creators, and anyone working with text that needs to follow specific naming conventions or formatting standards. It handles complex text transformations automatically, ensuring consistent formatting across your content.

The tool processes text in real-time, showing immediate results as you type or paste text. It's particularly useful for code formatting, variable naming, CSS class names, API endpoints, and content formatting.

When to use it

Code Development: Convert text to camelCase, snake_case, or kebab-case for variable names, function names, or CSS classes.

API Development: Format API endpoint names, parameter names, or JSON property names to follow naming conventions.

Content Creation: Convert text to title case or sentence case for headings, titles, or content formatting.

Database Work: Convert column names or table names to appropriate case formats (snake_case for SQL, camelCase for NoSQL).

File Naming: Convert file names to kebab-case or snake_case for consistent file naming conventions.

Documentation: Format code examples, variable names, or API documentation to follow style guides.

Data Processing: Transform data fields or column headers to consistent case formats for data processing pipelines.

How to use it

  1. Select Case Type: Choose the case format you want from the dropdown (uppercase, lowercase, title case, sentence case, camelCase, snake_case, kebab-case).

  2. Enter Text: Paste or type the text you want to convert into the input area.

  3. View Result: The converted text appears automatically in the output area as you type.

  4. Copy Result: Use the copy button to copy the converted text to your clipboard.

  5. Reset: Use the reset button to clear input and output.

  6. Load Example: Click the example button to see a sample case conversion.

Example

Input: hello world example text

Outputs by Case Type:

  • UPPERCASE: HELLO WORLD EXAMPLE TEXT
  • lowercase: hello world example text
  • Title Case: Hello World Example Text
  • Sentence case: Hello world example text
  • camelCase: helloWorldExampleText
  • snake_case: hello_world_example_text
  • kebab-case: hello-world-example-text

Common mistakes

Special Characters: Special characters and punctuation may affect case conversion. Some characters may be removed or transformed.

Numbers: Numbers in text are preserved but may affect word boundaries in camelCase, snake_case, or kebab-case conversions.

Acronyms: Acronyms and abbreviations may not convert as expected. For example, "API" in title case might become "Api" instead of staying "API".

Mixed Case Input: Text that's already in mixed case may convert differently than expected. Consider the source format.

Whitespace: Extra spaces may be preserved or removed depending on the case type. Clean input text for best results.

Unicode Characters: Some Unicode characters may not convert correctly. Ensure your text uses standard ASCII or UTF-8 encoding.

Tips for better results

Clean Input: Remove extra spaces and normalize your input text before conversion for consistent results.

Choose Appropriate Case: Select the case type that matches your use case - camelCase for JavaScript, snake_case for Python/SQL, kebab-case for URLs/CSS.

Review Output: Always review converted text to ensure it matches your expectations, especially for complex text.

Consistent Usage: Use the same case format consistently throughout your project for maintainability.

Code Standards: Follow language-specific naming conventions - camelCase for JavaScript/Java, snake_case for Python/Ruby, PascalCase for C#.

API Conventions: Follow API design conventions - kebab-case for URLs, camelCase for JSON properties, snake_case for query parameters.

Documentation: Use consistent case formatting in documentation to improve readability and professionalism.

FAQ

What case formats are supported? The tool supports uppercase, lowercase, title case, sentence case, camelCase, snake_case, and kebab-case.

Will the conversion preserve special characters? Special characters are preserved, but formatting may vary depending on the case type. Some characters may be removed in certain conversions.

Can I convert code? Yes, but be careful - converting code may break syntax. This tool is best for text, variable names, or content, not executable code.

Does the tool handle multiple languages? The tool works with any text, but case conversion rules are based on English conventions. Results may vary for other languages.

Is there a size limit? While there's no strict limit, very long texts may take longer to process. For extremely large files, consider using specialized tools.

Can I use this offline? Yes, once the page is loaded, case conversion happens entirely in your browser and works offline.

What's the difference between title case and sentence case? Title case capitalizes the first letter of each word, while sentence case capitalizes only the first letter of the first word.

Can I convert back and forth? Yes, you can convert text between different case formats, though some information (like original capitalization) may be lost.

Does the tool handle acronyms? Acronyms are converted according to the case type rules. They may not preserve their original capitalization in all conversions.

What's camelCase vs PascalCase? camelCase starts with lowercase (myVariable), while PascalCase starts with uppercase (MyVariable). This tool provides camelCase.

Frequently Asked Questions