How To Convert Text To camelCase

Quick Answer

This camel case converter lets you convert to camelCase instantly, joining words together with no spaces, keeping the first word lowercase and capitalizing the first letter of every word after it: "user profile image" becomes "userProfileImage". This is how to convert a label to a camelCase variable name. It follows the standard identifier naming convention for JavaScript variables and functions. Note that camelCase starts lowercase; a capitalized first letter is PascalCase instead.

Where camelCase Is Used

camelCase is the dominant identifier case for variable and function names in JavaScript, TypeScript, Java, Kotlin, and Swift. It is also the usual json key case: many APIs expect JSON keys in camelCase, so knowing how to turn a phrase into a JSON key is a daily task. Its close relative PascalCase (which also capitalizes the first letter) is used for class names, React components, and TypeScript interfaces.

How The Conversion Works

The converter breaks your text into words at spaces, hyphens, underscores, and other separators (and also at existing camelCase humps) then rejoins them in camelCase. For example: "user-profile-image", "user_profile_image", and "User Profile Image" all become "userProfileImage". Each line is processed independently, so you can convert a whole list of names at once.

This tool is free and runs online entirely in your browser. Your text stays on your device, protecting your privacy: nothing is uploaded to a server, and results appear instantly. Always review generated identifiers before pasting them into code.

Why camelCase Matters For Code

Consistent naming conventions make code easier to read, search, and maintain. When a codebase mixes camelCase and snake_case, every reader has to decide whether user_name and userName are the same variable. Linters and type checkers also enforce naming rules, so mismatched case produces warnings that slow down teams. Converting names to camelCase before pasting into code prevents these issues at the source.

Common Mistakes

camelCase vs Other Naming Conventions

camelCase is one of four common naming alternatives for code identifiers. PascalCase is identical except the first letter is also capitalised: it is used for class and component names. snake_case uses underscores as separators and is the default in Python and SQL. kebab-case uses hyphens and is used for CSS class names and URL slugs, but cannot be used for variable names in most languages because hyphens are treated as the subtraction operator. camelCase is the standard choice for JavaScript, TypeScript, Java, and Swift variables and functions.

Related tools: explore all text case and cleanup utilities in the Text Utilities collection.