Case converter — 20+ text case styles

Title Case follows the typical English headline rule: capitalize every word except short articles, conjunctions and prepositions (a, an, the, and, or, but, of, in, on, at, to, for, with, as, by, from) — unless they are the first or last word. Capitalize Each Word is the simpler rule that capitalizes every word with no skip list.

The tool splits your input on ., ! and ? followed by whitespace, lowercases everything, then re-capitalizes the first letter of each sentence. It does not understand abbreviations like Dr. or e.g. — always double-check important text.

The converter splits on whitespace, punctuation and on case transitions, so HelloWorld my-text snake_case 123abc becomes the tokens Hello, World, my, text, snake, case, 123, abc. Those tokens are then joined with the right separator and capitalization for the case you picked.

No. Everything runs locally. Your input is saved in localStorage so you can come back to it; the site uses Google Analytics for page-level visit counts only. The text itself never leaves your device.

COBOL-CASE (also called TRAIN-CASE or screaming-kebab) joins words with hyphens and uppercases everything: HELLO-WORLD-FROM-HERE. Useful for environment-variable-style identifiers and headers.

Strip diacritics removes accent marks from letters: café becomes cafe, naïve becomes naive, résumé becomes resume. It uses the Unicode NFD normalization to separate the accent from its base letter, then deletes the combining marks.

Yes — the Auto-convert as I type toggle is on by default. While it is on, the tool remembers the last case you clicked and re-runs it on every keystroke. Turn it off for one-shot conversions.

Yes — every click rolls a fresh random upper/lower choice for each letter, so you can keep clicking until you get a pattern you like.

Remove extra spaces collapses runs of whitespace down to a single space and trims the start and end. Remove all spaces strips every whitespace character so the result has no spaces, tabs or line breaks at all.

Both styles join words with no separator and capitalize each word, but camelCase starts with a lowercase letter (helloWorld) while PascalCase capitalizes the first letter too (HelloWorld). Convention is camelCase for variables and functions (JavaScript, Java), and PascalCase for classes, types and React components.

Paste your kebab-case text (e.g. my-css-class) into the input and click snake_case. The converter tokenizes on hyphens, underscores, spaces and case transitions, then re-joins with the new separator — so you get my_css_class. The same flow works for any pair (snake to camel, camel to kebab, CONSTANT to dot, etc.).

Yes — tokenization uses Unicode letter and number categories, so French, German, Spanish, Vietnamese, Cyrillic, Greek and similar scripts split correctly into words. UPPERCASE / lowercase use the browser’s built-in conversion, which handles most languages; a few locale-specific rules (Turkish dotted/dotless I, German ß in uppercase) follow the default Unicode mapping rather than locale-specific rules. To get plain ASCII out, run Strip diacritics first, then a programmer case. Need a character count for the result? Paste it into the character counter.