String naming style converter — lowercase, UPPERCASE, camelCase, PascalCase, snake_case, CONSTANT_CASE, kebab-case, Title Case, Sentence case, dot.case, Header-Case, no case, param-case, path/case, mOcKiNgCaSe
String Case Conversion is the process of converting text from one naming convention and capitalization format to another. Different programming languages, frameworks, and project standards have varying requirements for naming identifiers (variables, functions, classes, constants, etc.). A good case converter tool helps developers quickly switch between multiple styles, eliminating the tedium and potential errors of manual editing.
Converts all characters to lowercase letters. Commonly used for URL paths, filenames, and certain database field naming conventions.
Converts all characters to uppercase letters. Often used for emphasis, acronyms, and SQL keywords.
First word lowercase, subsequent words capitalized without separators. This is the standard naming convention for JavaScript variables and functions, and widely used for Java property names.
Every word starts with an uppercase letter, no separators. Commonly used for class names (Java, C#, TypeScript), React component names, and constructor functions.
Each word capitalized, separated by spaces. Equivalent to Title Case. Commonly used for personal names and job titles.
All uppercase letters with underscores between words. The standard naming convention for constants in Java, JavaScript, Python, and many other languages, e.g. MAX_SIZE, API_BASE_URL.
Words separated by dots, all lowercase. Commonly seen in configuration file property paths (e.g. spring.datasource.url) and certain language namespace representations.
Each word capitalized, separated by hyphens. This is the standard format for HTTP request/response header field names, e.g. Content-Type, Authorization, X-Request-ID.
Keeps the original input text unchanged. Useful for comparing the original text side-by-side with other conversion results.
Words separated by hyphens, all lowercase. Commonly used for URL slugs (e.g. how-to-learn-python), CSS class names (e.g. main-content), and command-line arguments (e.g. --output-dir).
Words separated by underscores, all lowercase. The standard naming convention for Python variables and functions, also widely used in Ruby, PHP, and database table/column names.
Words separated by forward slashes, all lowercase. Often used as simplified representations of URL path structures or filesystem paths.
Only the first letter is capitalized; the rest remain lowercase. Follows natural language writing conventions, suitable for plain text descriptions and comments.
First letter of each word capitalized, separated by spaces. Commonly used for article titles, news headlines, and chapter headings.
Letters alternate between uppercase and lowercase, creating a "mocking" or "Spongebob" visual effect. In internet culture, this is often used to express sarcasm or a teasing tone.
In daily development, developers frequently need to switch between naming conventions — whether refactoring legacy code, adapting to different programming language standards, or unifying team code style. Manually editing large amounts of text is not only inefficient but also prone to typos and inconsistencies. Our online case converter supports 15 common naming conventions with real-time conversion as you type, runs entirely in your browser, requires no installation, and never uploads data to any server. Whether you are a frontend, backend, or full-stack developer, this is an indispensable tool in your daily workflow.