Case converter

Fix text typed with caps lock on, format headings in title case, or turn phrases into variable names. Choose a style and copy the result.

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How your text and data are handled

  1. Your text and dataRead from your device
  2. Worked on in this tabBy code running in your browser
  3. Ready to copyNothing is stored

Never sent to a server. See how to check

How to use it

  1. Paste your text.

  2. Select the style you want.

  3. Copy the result, or use it as the new input to convert again.

About this tool

Title Case capitalises the main words and keeps short words such as "of", "and" and "the" lower case unless they start or end the title, following common English style guides. Sentence case capitalises the first letter of each sentence. Proper nouns such as names are lower-cased too, so check them afterwards.

The programming styles (camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE) split text into words at spaces, punctuation and existing case changes, so XMLHttpRequest becomes xml-http-request.

Good to know

  • Title case rules are for English; other languages capitalise titles differently.
  • Sentence case cannot recognise names or acronyms, so recheck them.

Frequently asked questions

How do I fix text typed with caps lock on?

Paste it and choose "Sentence case". Then capitalise any names by hand.

Does it work with languages other than English?

Upper, lower and sentence case work with any language that has capital letters, including accented Latin, Greek and Cyrillic. Title case rules are English-only. Arabic and Chinese have no letter case.

Which words stay lower case in Title Case?

Short articles, conjunctions and prepositions: a, an, and, as, at, but, by, for, if, in, nor, of, on, or, so, the, to, up, via, vs, yet. The first and last word are always capitalised.

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