Case Converter

How to use it

1. 1Paste your text into the input box.
2. 2Every format is produced at once — scroll the list and copy the one you need.
3. 3Use the copy button beside a format rather than selecting the text by hand.
4. 4For a URL slug, use the slug row: it strips accents, punctuation and doubled hyphens.
5. 5Convert one identifier at a time for best results — a whole paragraph becomes one very long camelCase word.

Frequently asked questions

Does it handle acronyms like HTTP or XML correctly?

Yes, and this is the case most converters get wrong. parseHTTPResponse becomes parse_http_response rather than parse_h_t_t_p_response, because an uppercase run followed by a capitalised word is treated as one token.

Why do URLs use hyphens but code uses underscores?

Hyphens read as subtraction in most programming languages, so identifiers cannot use them. URLs have no such constraint, and search engines have long treated hyphens as word separators.

Can I convert a whole file?

Paste it in — there is no length limit beyond what your browser can hold. Very large documents feel slower to type into, since every keystroke recomputes, but nothing is truncated.

Related tools

• Word CounterCount words, characters, sentences and paragraphs as you type, with reading and speaking time. Handles Chinese and Sinhala. Nothing uploaded.
• URL Encoder and DecoderPercent-encode or decode URLs and query parameters, and break any URL into its parts. Handles the component and full-URL distinction correctly.
• Text Diff CheckerCompare two texts and see exactly which lines were added, removed or kept, aligned properly rather than line by line. Runs in your browser.