Case Converter
Switch any block of text between UPPERCASE, lowercase, Title Case and Sentence case with one click.
This tool reformats the capitalisation of any text without changing the words themselves. It's handy for fixing text pasted from a source with the wrong case, formatting headlines, or preparing titles for a CMS. Each button applies its rule instantly to the full text box, and you can keep switching between formats until you get the one you need, then copy the result.
How to use it
- Paste your text into the input box.
- Click UPPERCASE, lowercase, Title Case, or Sentence case.
- The result appears instantly, replacing the box content.
- Click Copy to copy the converted text to your clipboard.
Frequently asked questions
What's the difference between Title Case and Sentence case?
Title Case capitalises the first letter of most words (like a book title), while Sentence case only capitalises the first letter of each sentence.
Will it fix acronyms like NASA or USA?
Title Case and lowercase conversions treat every letter the same way, so acronyms will be reformatted along with the rest of the text — you may need to fix those manually afterward.
Does it work on very long text?
Yes, there's no practical limit since conversion happens instantly in your browser rather than being sent to a server.