Need to convert text between different case formats? Whether it's UPPERCASE, lowercase, Title Case, or programming conventions like camelCase, PascalCase, snake_case, and kebab-case, this free online case converter handles it all with a single click.
What is Case Conversion?
Case conversion transforms text between different letter case formats. In everyday writing, UPPERCASE emphasizes or represents acronyms, lowercase is for regular text, and Title Case is for headings. In programming, different naming conventions serve specific purposes: camelCase is standard for JavaScript variables and functions, PascalCase for class names, snake_case is widely used in Python and database fields, and kebab-case is the standard for CSS class names and URL slugs.
Supported Case Formats
- UPPERCASE - All capitals, e.g., HELLO WORLD
- lowercase - All small letters, e.g., hello world
- Title Case - First letter of each word capitalized, e.g., Hello World
- Sentence case - Only first letter capitalized, e.g., Hello world
- tOGGLE cASE - Invert all cases, e.g., hELLO wORLD
- camelCase - No spaces, first word lowercase, e.g., helloWorld
- PascalCase - No spaces, all words capitalized, e.g., HelloWorld
- snake_case - Underscores between words, e.g., hello_world
- kebab-case - Hyphens between words, e.g., hello-world
Why Developers Need Case Converters
In software development, different languages, frameworks, and team conventions require different naming formats. When your JavaScript project uses camelCase but the API returns snake_case data, a case converter helps you quickly transform between formats. Similarly, when converting variable names to CSS classes, database fields, or URL slugs, this tool greatly improves efficiency. Manual conversion is time-consuming and error-prone - automation is the smart choice.
FAQ
Q: What's the difference between camelCase and PascalCase?
A: camelCase starts with a lowercase letter with subsequent words capitalized (e.g., myVariableName), while PascalCase capitalizes the first letter of every word including the first (e.g., MyClassName). In JavaScript, camelCase is used for variables and functions, PascalCase for classes and constructors.
Q: When should I use snake_case?
A: snake_case is commonly used in: Python variables and functions, database table and column names, environment variables, and some API field names (like Twitter's API). Its advantage is readability in systems that don't distinguish between upper and lower case.
Q: What are the special uses for kebab-case?
A: kebab-case is primarily used for: CSS class names, HTML attributes, URL paths and slugs, npm package names, and file/folder naming. Since it uses hyphens, it's more URL-friendly and is the standard format for CSS naming.