Case Converter

Type or paste your text and switch it to any case in one tap — clean, fast, and free.

⚡ Runs entirely in your browser
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How it works

Three steps — no sign-up, no upload, no wait.

1

Paste your text

Drop in a word, a heading, a variable name — anything you need reformatted.

2

Pick a case

Tap UPPERCASE, camelCase, snake_case or any of the eight styles to preview it live.

3

Copy & go

One tap copies the result to your clipboard, ready to paste wherever you like.

About the case styles

  • UPPERCASE — every letter capital, great for headings and emphasis.
  • lowercase — every letter small, tidy for tags and casual text.
  • Title Case — the first letter of each word capitalised, like a book title.
  • Sentence case — only the first letter of each sentence capitalised.
  • camelCase — words joined with no spaces, each new word capitalised — common in code.
  • snake_case — lowercase words joined by underscores, popular in Python and databases.
  • kebab-case — lowercase words joined by hyphens, handy for URLs and CSS class names.
  • CONSTANT_CASE — uppercase words joined by underscores, used for constants and config keys.
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Private by design. Everything happens right here in your browser. Your text is never uploaded — we never see it.

Frequently Asked Questions

Which case styles can I convert to?
Eight of them: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case and CONSTANT_CASE. Tap any one to preview it live.
What's the difference between camelCase and snake_case?
camelCase joins words with no spaces and capitalises each new word (like myVariableName), while snake_case uses all-lowercase words joined by underscores (like my_variable_name). Both are common in code.
Does it work on programming variable names?
Yes. The tool splits on spaces, underscores, hyphens and even camelCase humps, so an existing name like myVariableName converts cleanly into any other style.
Will it change my numbers or punctuation?
Numbers stay as they are. For the joined styles like snake_case and kebab-case, punctuation is treated as a word separator; UPPERCASE, lowercase, Title and Sentence case leave your punctuation in place.
Is there a limit on how much text I can convert?
No. You can paste a single word or many paragraphs — everything converts instantly as you type.
Is my text uploaded anywhere?
No. Everything happens right here in your browser on your own device. Your text is never uploaded and we never see it.