Toolorio

Case Converter

Paste or type your text and switch it between UPPERCASE, lowercase, Title Case and Sentence case instantly, then copy the result with one click.

Your files are processed locally in your browser. They are not uploaded to our servers.

How to use

  1. Paste or type your text into the box.
  2. Click a case button — UPPERCASE, lowercase, Title Case or Sentence case.
  3. Click Copy to copy the converted text.

What is this tool?

Case Converter rewrites the text you enter into a different letter case — UPPERCASE, lowercase, Title Case (every word capitalized) or Sentence case (only the start of each sentence capitalized) — entirely in your browser with a single click.

Common uses

  • Fixing text that was accidentally typed in the wrong case
  • Formatting headlines or titles consistently
  • Preparing text for style guides that require a specific case
  • Cleaning up pasted text from emails or documents

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FAQ

Is my text uploaded anywhere?

No. The conversion happens entirely in your browser — your text is never sent to a server.

Can I convert the text more than once?

Yes, click a different case button any time to re-convert the same text.

Does Sentence case handle abbreviations correctly?

It capitalizes the first letter after sentence-ending punctuation, so unusual abbreviations may need a manual touch-up.