The styles

Letter case covers UPPER and lower case, Title Case (small words like “of” and “the” stay lower case unless they start or end the line), Sentence case (a capital after each full stop, question mark or exclamation mark), and two playful ones.

For code and links joins the words of each line into one name: camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and dot.case. Words already in camelCase are split correctly, so “parseHTTPResponse” becomes parse_http_response. url-slug also removes accents (“Crème brûlée” becomes creme-brulee), which is handy for web addresses.

Tidy up removes repeated spaces, turns a paragraph broken into short lines back into one line, deletes blank lines, or trims the start and end of every line.

Questions

Does it change the original? No. The result appears in the second box. Press “Use result as my text” to chain two steps, for example removing line breaks and then Sentence case.

Why did Title Case change my capitals, like NASA? The text is lower-cased first, then each word gets a capital, so a name written in capitals ends up as “Nasa”. Fix the few exceptions by hand.

Is my text stored? Only in this browser, so a draft survives a reload. It is never uploaded. Press Clear to remove it.