Case Converter
Change the letter case of any text in nine modes — from plain lowercase to camelCase, snake_case and sWAP — with live results as you type.
lower / upper / swap change only cased letters and leave everything else — Chinese, accented letters, digits and emoji — untouched. Swap flips each letter to the opposite case.
Title Case lowercases each word, then capitalizes its first letter. Sentence case capitalizes the first letter plus letters after . ! ? followed by a space.
camel / Pascal / snake / kebab split the input into words at spaces, punctuation, underscores, hyphens, and case changes such as helloWorld or HTMLParser, then rejoin the lowercased words with no separator, an underscore, or a hyphen.
How to use it
- Type or paste your text into the input box, or click “Load .txt file” to open a plain-text file from your device.
- Pick a conversion mode from the “Conversion mode” dropdown — the converted result updates instantly.
- Copy the result to your clipboard, download it as a .txt file, or clear the input to start over.
Privacy
All conversion and file reading happen in your browser. Your text and files are never uploaded to a server, and no network request is made with your content.