Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase or snake_case.
About this tool
A headline pasted in all caps, a variable name to write in camelCase, a sentence to straighten out: this converter transforms your text in one click, with nine conversions to choose from — UPPERCASE, lowercase, Sentence case, Title Case, iNVERTED, aLtErNaTiNg, camelCase, snake_case and kebab-case.
Accented letters are handled properly both ways (é becomes É, Î becomes î), small words stay lowercase in titles, and the identifier formats (camel, snake, kebab) are transliterated without accents, ready to paste into code or a URL. The result updates on every keystroke and copies in one click.
Frequently asked questions
Are accents handled correctly?
Yes: the conversion follows the language rules of the page, so "café" becomes "CAFÉ" and "ÎLE" becomes "île". For camelCase, snake_case and kebab-case, accents are stripped because those formats name code and URLs.
What is Title Case exactly?
Each word is capitalised except small words (a, of, the, and…), which stay lowercase — the first and last words always keep their capital.
What are camelCase, snake_case and kebab-case for?
They are the naming conventions of code and the web: camelCase for JavaScript variables, snake_case for database columns or Python, kebab-case for file names and URLs.
Is my text sent to a server?
No, the conversion happens in your browser. Nothing is transmitted or stored.
Is it really free, with no sign-up?
Yes — the tool is free, needs no account and has no usage limit. Processing happens locally in your browser, so your data never leaves your device.