Instantly convert your text blocks between different letter cases (UPPER, lower, Title, Sentence, and more).
Text capitalization and formatting rules
A Case Converter is a tool that allows you to instantly change the capitalization style of a block of text, such as converting all letters to UPPERCASE, lowercase, Title Case, or Sentence Case.
These are variable naming conventions commonly used in programming. camelCase joins words with the first letter lowercased and subsequent words capitalized. PascalCase capitalizes all words. snake_case joins lowercase words with underscores.
Slug case (also called kebab-case) converts text to lowercase and replaces spaces and special characters with hyphens. It is widely used to create clean, human-readable, and SEO-friendly URLs.
Yes. The case conversions are performed completely in your web browser using JavaScript string manipulation. No text is sent to our servers, ensuring your sensitive text or notes remain confidential.