Case Converter

Convert text between common casing styles — sentence casing, title casing, and programming identifier styles like camelCase and snake_case — in one click.

Input text

Output

Output will appear here…

How to use this case converter

Type or paste text into the input box, then click any of the nine case buttons to convert it. UPPERCASE, lowercase, Title Case and Sentence case preserve your original spacing and punctuation, while camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE first split the text into individual words — breaking on spaces, hyphens, underscores and existing camelCase boundaries — then rejoin them into a valid identifier.

When each case style is used

Title Case and Sentence case are common in headings and prose. camelCase and PascalCase are standard for variable and class names in JavaScript, Java and C#. snake_case is typical in Python and database column names, kebab-case is common in URLs and CSS class names, and CONSTANT_CASE is the usual convention for constants and environment variables across most languages.

Privacy: This tool processes everything client-side in your browser using JavaScript. Your text is never sent to any server.