What is the difference between Title Case and Sentence case?

Title Case capitalises the first letter of each significant word — “How To Convert Text Case”. Sentence case capitalises only the first word and any proper nouns — “How to convert text case”. Most style guides now prefer sentence case for headings.

Which case should I use for code?

camelCase for JavaScript variables and functions, PascalCase for classes and React components, snake_case for Python and most SQL columns, kebab-case for CSS classes, file names and URLs. Following the convention of the language matters more than the choice itself.

Does it handle accented characters?

Yes. Case conversion uses the browser's Unicode-aware string methods, so é becomes É and ß is handled correctly rather than being mangled to ASCII.

Case Converter

Paste text and convert it to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case or kebab-case in one click, then copy the result. Useful for renaming variables, cleaning up a pasted heading, or fixing a caps-lock accident. Runs entirely in your browser.

Runs in your browser — nothing is uploaded

Questions

What is the difference between Title Case and Sentence case?: Title Case capitalises the first letter of each significant word — “How To Convert Text Case”. Sentence case capitalises only the first word and any proper nouns — “How to convert text case”. Most style guides now prefer sentence case for headings.
Which case should I use for code?: camelCase for JavaScript variables and functions, PascalCase for classes and React components, snake_case for Python and most SQL columns, kebab-case for CSS classes, file names and URLs. Following the convention of the language matters more than the choice itself.
Does it handle accented characters?: Yes. Case conversion uses the browser's Unicode-aware string methods, so é becomes É and ß is handled correctly rather than being mangled to ASCII.