Convert any text into eight formats: UPPERCASE, lowercase, Title Case, sentence case, camelCase, PascalCase, snake_case and kebab-case.
All calculations happen locally in your browser. Nothing leaves your device.
Naming styles matter: a Python function, a CSS class and a JavaScript variable each expect a different shape. This tool takes whatever you paste — plain prose, an existing identifier, or a mixed-up string — and rewrites it in all eight common shapes at once, so you can pick the right one for your context without counting underscores by hand.
Title Case capitalizes the first letter of every word ('Every Word Starts Uppercase'), which is common in book titles and headlines. Sentence case capitalizes only the first word and proper nouns ('Only the first word starts uppercase'), the standard for normal writing and many style guides.
snake_case (lowercase words joined by underscores) is common in Python, Ruby and file names in some ecosystems; kebab-case (lowercase words joined by hyphens) is the convention for URLs, CSS class names and many design systems. Pick the style your language or framework already uses for consistency.
It breaks the input into words on spaces, punctuation and case boundaries, so 'helloWorld' becomes hello and world and 'my_snake_case' becomes my, snake, case. Each format then re-joins the words with its own separator and capitalization rules.
For the simple formats (UPPERCASE, lowercase, Title Case, sentence case) only case changes — your text is untouched otherwise. The identifier formats (camelCase, PascalCase, snake_case, kebab-case) also normalize separators: every non-letter character becomes the style's separator.
No. The conversion happens entirely in your browser with a few lines of JavaScript. Nothing is sent to a server, stored or logged — you can safely paste text that would be sensitive to lose.
If you just finished with Text Case Converter, the natural next steps are Text Whitespace Cleaner, Duplicate Line Remover, Word & Character Counter, or browse every tool in Daily Tools.