Text Case Converter Online
Convert text case easily to lowercase, uppercase, title case, camelCase, snake_case, or kebab-case. Includes character, word, and sentence counts.
In editorial publishing, website design, and software engineering, the casing of words communicates structure and meaning. When drafting content, editors use Title Case for headlines to create hierarchy, and use Sentence case for body copy to make it comfortable to read. In software design, compilers and interpreters do not permit spaces in variable or file names, leading developers to use specific casing styles to make composite names easy to read.
Casing Styles in Software Development
Different programming languages and environments have established specific style guides that mandate different casing systems:
- camelCase: The first letter is lowercase, and each subsequent word starts with an uppercase letter (e.g.
userId). This is standard in JavaScript, Java, and TypeScript for naming variables and functions. - PascalCase: Similar to camelCase, but the very first letter is also capitalized (e.g.
UserManager). This style is standard in C#, C++, and Java for naming classes and types. - snake_case: Words are written in lowercase separated by underscores (e.g.
user_id). This is the standard naming convention in Python, Ruby, and Rust, and is commonly used for database column headers. - kebab-case: Words are written in lowercase separated by hyphens (e.g.
user-id). This is the standard style for CSS class names, HTML attributes, and URL paths. - UPPERCASE (CONSTANTS): Words are written in uppercase separated by underscores (e.g.
MAX_REPLICAS). This is standard across languages for naming constant values.
Writing Clean Content and Formats
Converting between these cases manually is tedious and error-prone, especially when working with large variables or configurations. A case converter automates this, allowing you to paste code variables or text and convert them between styles instantly.
frequently asked questions
Programming languages use casing conventions to improve code readability. Because compiler parsers cannot accept spaces in variable names, developers use casing styles like camelCase (JavaScript), snake_case (Python), and kebab-case (CSS properties) to separate words without spaces.
In camelCase, the first word starts with a lowercase letter, and all subsequent words are capitalized (e.g. appSettings). In PascalCase, every single word starts with an uppercase letter (e.g. AppSettings). PascalCase is commonly used for class names in object-oriented programming.
Title Case capitalizes the first letter of every word in a string. It is commonly used for headings, book titles, and editorial layouts.
Kebab-case separates words using hyphens instead of spaces or capitals. It is the standard casing style for CSS class names, HTML attributes, and URL slug paths (e.g. /tools/case-converter).
Yes. All text conversions and calculations run client-side inside your browser, so your text is never uploaded to any external server.