ToolNestr

Case Converter

Paste your text, then pick a case. The text is converted instantly — copy it back with one click.

0 characters

About this case converter

A case converter changes the capitalization of your text without you retyping it. It's handy for fixing text typed with Caps Lock on, formatting headlines in Title Case, cleaning up ALL-CAPS messages, or creating fun alternating-case text for social media. Everything happens instantly in your browser.

How to use it

  1. Type or paste your text into the box.
  2. Click the case you want (UPPERCASE, lowercase, Title Case, and more).
  3. The text updates in place — click another case to change it again.
  4. Press “Copy text” to copy the result, or “Clear” to start over.

Frequently asked questions

What is Title Case vs Sentence case?

Title Case capitalizes the first letter of most words (great for headings). Sentence case capitalizes only the first letter of each sentence, like normal writing.

Will it keep my line breaks?

Yes. Converting case only changes letters, so your paragraphs and line breaks stay exactly as they are.

Is there a character limit?

No. Paste as much text as you like — it is all processed instantly on your device.

Is my text private?

Yes. The converter runs entirely in your browser, so nothing is uploaded or stored.

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