Case Converter
Paste any text and instantly see it in every letter case: UPPERCASE, lowercase, Title Case, Sentence case, and developer formats like camelCase, snake_case, and kebab-case. Copy any result with one click.
HELLO WORLDhello worldHello WorldHello worldhelloWorldHelloWorldhello_worldhello-worldHELLO_WORLDhello.worldhElLo wOrLdText case conversion, explained
What does a case converter do?+
It rewrites your text in a chosen letter-case style without changing the words. Type or paste text once and this tool shows every style side by side, from UPPERCASE and Title Case to programmer formats like camelCase and snake_case, each with a one-click copy button.
What is the difference between camelCase and PascalCase?+
Both join words with no spaces and capitalise each new word. camelCase leaves the very first letter lowercase (helloWorld), while PascalCase capitalises it too (HelloWorld). camelCase is common for variables, PascalCase for class and component names.
When should I use snake_case, kebab-case, or CONSTANT_CASE?+
snake_case (hello_world) suits variables and file names in languages like Python. kebab-case (hello-world) is standard for URLs, CSS classes, and package names. CONSTANT_CASE (HELLO_WORLD) is the usual style for fixed values and environment variables.
How is Title Case different from Sentence case?+
Title Case capitalises the first letter of every word, which suits headings. Sentence case only capitalises the first letter of each sentence and leaves the rest lowercase, which reads naturally in body copy and descriptions.
Is this case converter free and private?+
Yes. It is completely free with no login, and every conversion runs entirely in your browser. Your text is never uploaded or sent to a server.
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