Text Case Converter -- Uppercase, camelCase & More

Frequently Asked Questions

What is camelCase?

camelCase is a naming convention where the first word is lowercase and each subsequent word starts with an uppercase letter, with no spaces or separators. Example: helloWorld or getUserName. It is the standard naming style for variables and functions in JavaScript, Java, and many other languages.

What is the difference between camelCase and PascalCase?

camelCase starts with a lowercase letter (e.g., myVariable), while PascalCase starts with an uppercase letter (e.g., MyVariable). PascalCase is also called UpperCamelCase. Use PascalCase for class names and component names; use camelCase for variables and function names.

What is snake_case?

snake_case replaces spaces with underscores and converts all letters to lowercase. Example: hello_world or get_user_name. It is the standard naming convention in Python, Ruby, and database column names.

What is kebab-case?

kebab-case (also called dash-case or lisp-case) replaces spaces with hyphens and converts all letters to lowercase. Example: hello-world or my-component. It is commonly used in CSS class names, URL slugs, and HTML attributes.

What is CONSTANT_CASE?

CONSTANT_CASE (also called SCREAMING_SNAKE_CASE) converts all letters to uppercase and replaces spaces with underscores. Example: MAX_RETRY_COUNT or API_BASE_URL. It is the standard for constants and environment variables in most programming languages.

Which case style should I use for programming?

It depends on the language and context:

• JavaScript / Java / TypeScript: camelCase for variables and functions, PascalCase for classes and components
• Python / Ruby: snake_case for variables and functions, PascalCase for classes
• CSS: kebab-case for class names
• Constants: CONSTANT_CASE in most languages
• URLs: kebab-case for slugs

Follow your project's style guide for consistency.

How do I convert camelCase to snake_case?

Insert an underscore before each uppercase letter, then convert everything to lowercase. For example, getUserName becomes get_user_name. This converter handles it automatically — paste your camelCase text and select snake_case.

What is dot.case used for?

dot.case replaces spaces with periods and converts all letters to lowercase. Example: my.config.value. It is commonly used in Java package names (e.g., com.example.app), configuration file keys, and property path notation.

Can I convert between any two case styles?

Yes. This converter intelligently splits text on spaces, underscores, hyphens, dots, and camelCase boundaries. That means you can paste getUserName, get_user_name, get-user-name, or Get User Name and convert to any target case.

Does this tool store my text?

No. All conversions run entirely in your browser using JavaScript. No text is sent to any server, and nothing is stored or tracked.

Learn More

For a deeper dive into when and why to use each naming convention — with language-specific style guide references, acronym handling rules, and common mistakes — read our guide: Text Case Conventions Explained: camelCase, snake_case, kebab-case & More.

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