Case Converter
Paste your text and choose a case to convert it to UPPERCASE, lowercase, Title Case, or Sentence case.
Last updated: September 5, 2026
Frequently asked questions
What's the difference between title case and sentence case?
Title case capitalizes the first letter of every major word ("Hello World Example"), while sentence case only capitalizes the first letter of the whole text ("Hello world example").
Does this case converter save my text?
No - the conversion runs entirely in your browser and nothing is sent or stored.
Does this handle accented letters and non-English characters correctly?
Yes - case conversion works on standard Unicode text, including accented letters (é, ñ, ü, etc.), so converting to uppercase or lowercase preserves accents correctly rather than stripping them.
What case styles does this converter support?
Beyond title case and sentence case, it converts to UPPERCASE, lowercase, camelCase, and other common formatting styles used in writing and code, so you can reformat text for whichever context you need.
How does title case decide which words to capitalize?
It capitalizes the first letter of every word in the text, without special handling for smaller words like 'a,' 'the,' or 'of' - so 'the lord of the rings' becomes 'The Lord Of The Rings' here, rather than the style-guide convention that lowercases minor words.
What does sentence case do with a text that has multiple sentences?
It capitalizes only the very first letter of the entire input, leaving everything else lowercase - it doesn't detect individual sentence boundaries and re-capitalize each one, so a multi-sentence paragraph gets exactly one capital letter overall.
If my text has ALL CAPS acronyms like 'NASA,' does converting to lowercase break them?
Yes - converting to lowercase treats every letter the same way regardless of context, so 'NASA' becomes 'nasa.' There's no acronym detection, so review text with acronyms or proper nouns after converting.