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Case Converter

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case and more.

100% Client-Side

Paste your text, then click a case style to convert it — copy the result with one click.

How to use the Case Converter

  1. 1

    Paste or type the text you want to convert.

  2. 2

    Click a style such as Title Case, Sentence case or snake_case.

  3. 3

    Check the converted text in the result box.

  4. 4

    Copy it, or keep converting — the original stays untouched until you replace it.

Frequently asked questions

Capitalize Words uppercases the first letter of every word. Title Case follows headline style and keeps short words like "a", "of" and "the" lowercase unless they start or end the title.

Everything is lowercased, then the first letter of each sentence — after a period, question mark, exclamation mark or line break — is capitalized. Proper nouns need a manual touch afterwards.

Yes. camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and dot.case split your text on spaces, punctuation and existing camelCase boundaries, so "userFirstName" becomes "user_first_name".

Upper and lower case use your browser's Unicode rules, so letters like é, ß and Cyrillic or Greek characters convert correctly.

No. Conversion runs entirely in your browser and nothing is stored.

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Delete repeated lines from a list, with options to ignore case, trim spaces, drop empty lines and sort.

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