camelCase Converter
Convert text to camelCase and all other programming naming conventions.
Enter text above and click Convert.
How to Use This Tool
- Paste or type the text you want to reformat into the camelCase Case Converter input area at the top of the page.
- The camelCase Case Converter instantly transforms your text into the target case style as you type, with no button click required.
- Copy the converted result to your clipboard with one click and paste it wherever you need it.
Common Use Cases
- JavaScript variable naming: Convert "user profile data" to userProfileData for ES6/Node.js variable and function declarations following standard JS conventions.
- Java method names: Backend developers reformat database column names like "first_name" into firstName for POJO getter/setter methods and JPA entity fields.
- API JSON keys: Convert snake_case server responses (created_at, user_id) into camelCase for clean frontend consumption in React or Vue components.
Frequently Asked Questions
How does camelCase differ from PascalCase?
camelCase keeps the first letter lowercase and capitalizes every subsequent word (userName, getFullName), while PascalCase capitalizes the first letter too (UserName). camelCase is used for variables and methods in JavaScript and Java; PascalCase is used for classes and types.
How do I convert snake_case like "user_first_name" to camelCase?
Split on underscores, lowercase the first chunk, and capitalize the first letter of each remaining chunk. "user_first_name" becomes "userFirstName". Paste the snake_case string into the input box above and the converter handles delimiters, hyphens, and spaces automatically.
Should JSON API keys use camelCase or snake_case?
Google's JSON style guide recommends camelCase (firstName), while Python/Ruby APIs often use snake_case (first_name). JavaScript clients typically map snake_case responses to camelCase using libraries like humps or lodash.camelCase before binding to view models.