camelCase is the standard naming convention in JavaScript, Java, TypeScript, and many other languages. The first word is lowercase, and each subsequent word starts with an uppercase letter — no separators: `getUserName`, `maxRetryCount`, `isLoggedIn`.
This tool instantly converts any text to camelCase. If you're porting Python snake_case code to JavaScript, converting CSS properties to JS style objects, or renaming variables, just paste your text and copy. It handles snake_case, kebab-case, PascalCase, dots, spaces, and any mixed format.
How to Use
1. Type or paste any text — snake_case, kebab-case, PascalCase, or plain words
2. The camelCase result appears highlighted at the top
3. All other case formats are also shown below
4. Click "Copy" to copy the camelCase result
Frequently Asked Questions
What is camelCase?
camelCase is a naming convention where the first word is lowercase and each subsequent word starts with a capital letter, with no separators. Example: 'getUserName'. The uppercase letters in the middle look like camel humps, hence the name.
How do I convert snake_case to camelCase?
Paste your snake_case text (e.g., 'get_user_name') and the tool splits on underscores, capitalizes the first letter of each word except the first, and joins them to produce 'getUserName'.
When should I use camelCase?
Use camelCase for: JavaScript/TypeScript variables and functions, Java variables and methods, JSON property names (commonly), React props, and C++ local variables. It's the most widely used convention in frontend development.
What's the difference between camelCase and PascalCase?
camelCase starts with a lowercase letter (getUserName), while PascalCase starts with an uppercase letter (GetUserName). camelCase is for variables and functions; PascalCase is for class names and React components.
Is camelCase used in CSS?
No, CSS uses kebab-case (background-color), but JavaScript DOM APIs use camelCase equivalents (backgroundColor). This tool helps you convert between them — paste 'background-color' and get 'backgroundColor'.