How the alternating case converter works
Text that flips between capitals and lower case letter by letter is the standard way to write a sarcastic quote online. Typing it by hand with the shift key is slow and easy to get wrong, so paste a sentence here and the pattern is applied exactly, ready to copy.
Two choices decide the output. The first is whether the sequence starts on an upper or a lower case letter, which shifts every following letter by one step. The second is what advances the pattern. By default only cased letters count, so spaces, digits, punctuation and Hangul are skipped and the letters alternate cleanly across word boundaries. Switch to counting every character and a space will consume a step, producing a different result for the same sentence. Either way, the panel reports how many characters had no case and whether they were included in the alternation.
A character counts as cased when its upper and lower forms differ, so accented letters in French or German are handled along with plain English. Text is walked by code point, which means emoji survive intact instead of being cut in half, and scripts without case simply pass through.
Frequently asked questions
Yes. Choosing upper case first or lower case first shifts every letter by one step, so the same sentence produces two different results.
Not by default. Only cased letters advance the alternation, which keeps the rhythm steady across words. Switch the second option to make every character count, and spaces or digits will shift the pattern.
Text is processed by code point, so emoji are never split in half. Characters without an upper and lower form, including Hangul and emoji, pass through unchanged.