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Case & Format

Online Case Converter: Convert Text to UPPERCASE & lowercase

Convert text between UPPERCASE, lowercase, Title Case, Sentence case and aLtErNaTiNg case. Everything happens live in your browser — nothing is uploaded.

Runs in your browser — your text is never uploaded or stored.

Quick answer

Case Converter is a free online tool that convert text between UPPERCASE, lowercase, Title Case, Sentence case and aLtErNaTiNg case. Everything happens live in your browser — nothing is uploaded.

  • Cost: free, no signup or limits.
  • Privacy: runs 100% in your browser; text is never uploaded.
  • Works on: desktop and mobile browsers, offline once loaded.
  • Category: Case & Format.

Common conversions

Convert Text to UPPERCASE OnlineConvert UPPERCASE to lowercase OnlineTitle Case Converter: Capitalise Every WordSentence Case Converter OnlineaLtErNaTiNg CaSe GeNeRaToR (Mocking Text)Capitalise the First Letter of Every LineCapitalise the First Letter of Every Word

How to Use

  1. 1.Paste or type your text into the input box.
  2. 2.Click the case style you want — UPPERCASE, lowercase, Title Case, Sentence case or aLtErNaTiNg.
  3. 3.Copy the converted text with one click and paste it wherever you need.
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FAQ

Is my text uploaded anywhere?

No. All conversions run in your browser using JavaScript. Nothing is sent to a server.

What is Sentence case?

Sentence case capitalizes the first letter of each sentence and lowercases the rest, matching normal prose style.

Can I convert huge blocks of text?

Yes — the tool handles thousands of lines instantly because it runs locally on your device.

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