Free camelCase Converter — Instant Online Tool for Developers
Convert any text to camelCase instantly with our free online tool. Perfect for JavaScript variables, function names, JSON keys, and React props. Paste your text above and click camelCase — results appear in real time with no signup required.
What is camelCase?
camelCase is a naming convention where words are joined together without spaces, with the first word in lowercase and each subsequent word starting with an uppercase letter. The name comes from the humps of a camel — the capital letters in the middle of a word resemble a camel's back.
Example:
Input:
user profile data
Output:
getUserProfileData
When Do Developers Use camelCase?
| Language / Context | Usage | Example |
|---|---|---|
| JavaScript / TypeScript | Variables & functions | getUserData(), firstName |
| Java | Variables & functions | getUserProfile(), isActive |
| Swift | Variables & functions | userName, fetchData() |
| Kotlin | Variables & properties | firstName, isLoggedIn |
| JSON keys | API responses | { "userId": 1, "firstName": "John" } |
| React | Props & state | onClick, isVisible, userName |
| CSS-in-JS | Style properties | backgroundColor, fontSize |
Good vs. Bad camelCase
| Input Text | ✅ Correct | ❌ Wrong Format |
|---|---|---|
| get user data | getUserData | Get_User_Data / get user data |
| background color | backgroundColor | Background_Color / background_color |
| is email verified | isEmailVerified | Is_Email_Verified / is_email_verified |
| first name | firstName | First_Name / first_name |
| fetch user profile | fetchUserProfile | Fetch_User_Profile / fetch-user-profile |
camelCase vs PascalCase vs snake_case — What's the Difference?
| Case Type | Example | Used In | First Letter |
|---|---|---|---|
| camelCase | getUserData | JS, Java, Swift | Lowercase |
| PascalCase | GetUserData | C#, React components | Uppercase |
| snake_case | get_user_data | Python, databases | Lowercase |
| kebab-case | get-user-data | URLs, CSS, HTML | Lowercase |
Ready to convert your text? Use the tool at the top of this page — it's free, instant, and requires no signup.
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 spaces or separators. Example: getUserData.
When should I use camelCase?
Use camelCase for variable names, function names, and object properties in JavaScript, Java, Swift, and Kotlin. It is the standard convention in most object-oriented languages.
What is the difference between camelCase and PascalCase?
In camelCase, the first word is lowercase (getUserData). In PascalCase, every word including the first starts with a capital letter (GetUserData). PascalCase is used for class names and React components.
Does camelCase work for CSS?
No — CSS class names and properties use kebab-case (background-color). However, CSS-in-JS libraries like styled-components use camelCase (backgroundColor).
Is camelCase the same as dromedary case?
Yes — dromedary case is another name for camelCase (lowercase first letter). Upper camel case is the same as PascalCase (uppercase first letter).
How do I convert text to camelCase online?
Type or paste your text into the converter above, then click the camelCase button. Your text is instantly converted with spaces removed and each word (except the first) capitalised.