Case Converter
Paste any text and instantly switch it to UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case, and more. No file upload, no account — works entirely in your browser.
10 case formats in one tool
Every character capitalised. E.g. HELLO WORLD. Perfect for labels, constants, and emphasis.
Every character made lowercase. E.g. hello world. Clean baseline for further processing.
First letter of each word capitalised. E.g. Hello World. Standard for titles and headings.
Words joined, first word lowercase, rest capitalised. E.g. helloWorld. Used in JavaScript and Java.
Every word capitalised, no spaces. E.g. HelloWorld. Standard for class names in C# and TypeScript.
Words joined with underscores, all lowercase. E.g. hello_world. Common in Python, Ruby, and SQL.
Words joined with hyphens, all lowercase. E.g. hello-world. Used in URLs, CSS, and HTML attributes.
snake_case in all caps. E.g. HELLO_WORLD. Used for constants and environment variables.
Case alternates every character. E.g. hElLo WoRlD. Stylistic or mocking tone.
Flips the existing case of each letter. Hello becomes hELLO. Reverse any capitalisation.