Case Converter Upper to Lower
Switch text between uppercase, lowercase, sentence case and title case instantly.
How to use this tool
- 1Paste the text you want to reformat.
- 2Choose the case you need: UPPERCASE, lowercase, Sentence case or Title Case.
- 3Review the converted text.
- 4Copy it to your clipboard.
About this tool
Text arrives in the wrong case constantly. Someone types a whole paragraph with caps lock on. A spreadsheet export shouts every product name in capitals. A pasted headline is in title case when your style guide says sentence case. Retyping is a waste of time and introduces typos, and Word's own case menu is buried and behaves oddly with acronyms. This converter handles the four cases people actually need and does the fiddly parts properly: sentence case capitalises after full stops, question marks and exclamation marks rather than just the first letter of the block, and title case leaves short joining words alone the way editorial style guides expect. The conversion happens in your browser, so you can paste in unpublished copy without it going anywhere.
Frequently Asked Questions
Does title case keep small words lowercase?
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Yes. Articles, conjunctions and short prepositions stay lowercase unless they start or end the title.
Will it break acronyms?
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Lowercase and sentence case will lowercase acronyms, since there is no reliable way to detect them. Check the output if your text contains many.
Is there a length limit?
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No practical limit. The conversion runs locally, so you can paste in very long documents.