Internal utility
Text Case Converter
Paste your text, pick a case, copy the result. Nothing is stored, and with JavaScript on nothing is uploaded either — the conversion happens in your browser as you type.
Title Case capitalises the first letter of every word and leaves apostrophes alone, so isn't stays Isn't. Stop words like the and of are capitalised too — style guides disagree about which to skip, so this one skips none.
Sentence case lowercases everything, then capitalises the first letter of the text, of each line, and of whatever follows a ., ! or ? plus a space. Quotes and brackets on either side of that break are stepped over, so “hello” he said. capitalises. hello.world is left intact, because no space means no sentence break.
From a terminal: curl -sX POST https://text-case-converter-paste-text-and-conve.staging.saturniadesign.com/api/convert -H 'Content-Type: application/json' -d '{"text":"hello","mode":"title"}'