Case Converter

A case converter is a text transformation tool that changes the capitalization and formatting of text to match various coding conventions, style guides, and formatting standards. Different programming languages, style guides, and industries use specific case conventions for variable names, class names, file names, URLs, and headings.

The most common case conventions include camelCase (used in JavaScript variables), PascalCase (used in class names), snake_case (used in Python and database naming), kebab-case (used in URLs and CSS class names), and UPPER_CASE (used for constants). Each convention serves a specific purpose and follows the conventions of its respective ecosystem.

This converter transforms any input text into thirteen different case formats simultaneously, including standard formats like uppercase, lowercase, title case, and sentence case, as well as developer-focused formats like camelCase, PascalCase, snake_case, kebab-case, and more. It also includes alternating case and inverse case for creative and stylistic applications.

The copy-to-clipboard functionality for each format makes it easy to grab the exact format you need without manual reformatting, saving time and preventing errors in code and documentation.

camelCase starts with a lowercase letter and capitalizes the first letter of each subsequent word. It is the standard for JavaScript variable and function names: myVariableName, calculateTotal, getUserData.

PascalCase capitalizes the first letter of every word, including the first word. It is used for class names and component names in many languages: MyComponent, UserAuthentication, DatabaseConnection.

snake_case uses lowercase letters separated by underscores. It is the standard for Python variable names, database column names, and many API conventions: my_variable_name, user_id, total_count.

kebab-case uses lowercase letters separated by hyphens. It is used for URLs, CSS class names, and HTML identifiers: my-component-name, user-profile, navigation-bar.

CONSTANT_CASE (also called SCREAMING_SNAKE_CASE) uses all uppercase letters with underscores. It is used for constants: MAX_ITERATIONS, API_KEY, DEFAULT_TIMEOUT.

This case converter is simple and instant:

1. Enter Your Text: Type or paste any text into the text area. The converter works with any length of text and handles special characters and numbers.
2. View All Formats: As you type, the converter instantly displays your text in all thirteen case formats. No button press is needed—the conversion happens in real time.
3. Copy a Format: Click the "Copy" button next to any format to copy that version to your clipboard. You can then paste it directly into your code, documentation, or any other application.

The case types reference panel below the converter explains each format's typical use case, helping you choose the right convention for your specific needs.

The converter displays thirteen different case formats for your input text. The standard formats—uppercase, lowercase, title case, and sentence case—handle general text formatting needs for documents, headings, and prose.

The programming formats—camelCase, PascalCase, snake_case, kebab-case, constantCase, dotCase, and pathCase—handle code-specific naming conventions. Each format follows the specific rules of its target ecosystem, ensuring your code is idiomatic and follows community standards.

The special formats—alternating case and inverse case—are useful for stylistic text effects, social media, and creative applications. Alternating case produces aLternATING teXT, while inverse case swaps the case of each character.

Software development is the primary application. Developers constantly need to convert variable names between conventions when working across different languages or following team style guides. Converting a database column name from snake_case to camelCase for a JavaScript application, or from camelCase to PascalCase for a class name, is a daily task.

API integration often requires matching the naming conventions of external services. If a REST API returns data in snake_case but your application uses camelCase, you need to convert field names during data processing.

Documentation and content creation uses case conversion for headings (Title Case), acronyms (UPPER_CASE), and code examples that must match specific style guides. Technical writers use case converters to ensure consistency across documentation.

URL and slug generation requires converting human-readable titles into kebab-case for web addresses. A blog post titled "How to Convert Text Case" becomes how-to-convert-text-case for the URL slug.