Case converter
Switch between UPPERCASE, lowercase, Title Case, and Sentence case.
Result
Start typing and the result appears here. No button needed.
Case converter, without the extra steps.
Change the capitalization of pasted text in one step. Choose uppercase, lowercase, simple title case, or sentence case — one capital after each full stop, question mark, or exclamation mark — and copy the result into your document. The conversion happens as you type.
How to use this tool
- 1Paste your text.
- 2Choose UPPERCASE, lowercase, Title Case, or Sentence case.
- 3Copy the converted result.
When Case converter is the right tool
- A heading arrived in all caps and house style wants title case.
- A pasted list has inconsistent capitalisation.
- A caps-lock accident needs fixing without retyping.
- Data needs normalising to one case before comparison.
Title case is mechanical here
Title case capitalises the first letter of each word. It does not apply editorial style rules, which differ between AP, Chicago, and house guides on whether short prepositions and conjunctions stay lowercase. Treat the output as a fast first pass and correct the small words by hand if you are following a specific style guide.
Locale and irreversibility
Case conversion uses the browser's Unicode rules, so non-Latin scripts are handled correctly and German ß or Turkish dotted i behave according to those rules rather than naive byte mapping. Converting to uppercase is lossy in one direction: once "iPhone" becomes "IPHONE", nothing can recover the original casing, so keep the source text if it matters.
A few quick answers.
Paste your text. Choose UPPERCASE, lowercase, Title Case, or Sentence case. Copy the converted result.
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Title case capitalizes every word start; it does not implement a publication-specific style guide, keep small words lowercase, or infer proper nouns. Sentence case lowercases the rest of each sentence, so acronyms are not preserved.
No. It capitalises the first letter of every word. Style guides disagree about short prepositions and conjunctions, so treat it as a first pass.
Not from the output alone — original casing is unrecoverable once discarded. Keep the source text if the exact capitalisation matters.