Text Case Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, UPPERCASE, lowercase, Title Case, CONSTANT_CASE, and more.
Examples
Case Reference
| Case | Example | Common Usage |
|---|---|---|
| camelCase | myVariable | JavaScript, Java, TypeScript variables |
| PascalCase | MyComponent | React components, C# classes |
| snake_case | my_variable | Python, Ruby, database columns |
| kebab-case | my-component | CSS classes, HTML attributes, URLs |
| CONSTANT_CASE | MAX_VALUE | Constants, environment variables |
| dot.case | my.config | Configuration keys, namespaces |
About Text Case Converter
Text case conversion is essential for developers who work across multiple languages and frameworks. Each language has its own naming conventions: JavaScript uses camelCase for variables and PascalCase for classes, Python uses snake_case, CSS uses kebab-case, and environment variables use CONSTANT_CASE.
This tool intelligently detects the input case format and provides instant conversion to 13 different case formats. It handles mixed inputs, abbreviations, and numbers correctly, splitting words at case boundaries, separators, and digits.
All processing happens client-side in your browser. No data is sent to any server.
How to Use This Text Case Converter
This free online tool converts text between 13 different case formats used in programming. It automatically detects the input format and provides instant conversion to all supported cases.
- Enter your text — type or paste text in any format (camelCase, snake_case, natural sentence, etc.).
- View all conversions — the tool instantly shows the text converted to all 13 case formats.
- Copy any result — click the copy button next to any conversion to copy it to your clipboard.
- Check detected case — the stats section shows the detected input case, character count, and word count.
All processing happens locally in your browser. No data is sent to any server.
Common Use Cases
- Cross-language development — Convert variable names when porting code between JavaScript (camelCase), Python (snake_case), and other languages.
- API integration — Transform JSON field names from snake_case API responses to camelCase for JavaScript usage.
- CSS class naming — Convert component names from PascalCase to kebab-case for CSS class names following BEM or other conventions.
- Database schema design — Convert entity names from PascalCase to snake_case for database column naming.
- Environment variables — Convert configuration keys to CONSTANT_CASE for .env files.
Related Tools
Frequently Asked Questions
What is text case conversion?
Text case conversion is the process of transforming text from one naming convention to another. Different programming languages and frameworks use different conventions: JavaScript uses camelCase for variables (myVariable), React uses PascalCase for components (MyComponent), Python uses snake_case (my_variable), CSS uses kebab-case (my-class), and environment variables use CONSTANT_CASE (MAX_RETRIES).
What is camelCase?
camelCase is a naming convention where words are joined without spaces, the first word starts with a lowercase letter, and each subsequent word starts with an uppercase letter (e.g., getUserName, firstName, isActive). It is the standard convention for variables and function names in JavaScript, TypeScript, Java, and C#.
What is the difference between camelCase and PascalCase?
camelCase starts with a lowercase letter (myVariable), while PascalCase starts with an uppercase letter (MyVariable). camelCase is used for variables and functions, while PascalCase is used for class names, React components, TypeScript interfaces, and C# methods. PascalCase is sometimes called UpperCamelCase.
When should I use snake_case vs kebab-case?
snake_case (words separated by underscores) is the convention in Python, Ruby, Rust, and SQL/database columns. kebab-case (words separated by hyphens) is used in CSS class names, HTML attributes, URL slugs, and CLI arguments. kebab-case cannot be used as variable names in most programming languages because the hyphen is treated as a minus operator.
How does this tool detect the input case?
The tool analyzes the input text for patterns: it checks for separators (underscores, hyphens, dots), case transitions (lowercase to uppercase for camelCase/PascalCase), and character casing (all upper, all lower). It then displays the detected case to help you understand how your input will be parsed before conversion.
Does this tool handle abbreviations and numbers?
Yes, the tool intelligently handles abbreviations and numbers. For example, 'HTMLParser' is split into 'HTML' and 'Parser', 'getUserID' becomes 'get', 'user', 'ID', and 'item2Count' is handled correctly. This ensures accurate conversion between all supported case formats.
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