ClickSail
ClickSail

Case Converter

Change text to UPPER, lower, Sentence case.
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Works well with

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How to use

How to use Case Converter

Flip casing for titles, code constants, or social posts in one click.

  1. Enter the text you want to transform.

  2. Choose a case style — UPPER, lower, Title, or Sentence.

  3. Copy the converted output and paste it wherever you need it.

Common questions

What is snake_case or camelCase?

This tool focuses on common text cases (upper, lower, title, sentence). For programming case styles, use the output as a starting point and adjust manually.

Will it change numbers or symbols?

Only letter casing changes. Numbers, punctuation, and spacing stay as-is.

Can I convert a whole paragraph at once?

Yes. Paste as much text as you need — there is no line limit beyond your browser memory.

Runs in your browser · Your input is never uploaded · Free with no account