This tool analyses text, finds all the characters used, and shows one instance of each character, grouped by Unicode block.
The icon copies the characters on that row to your clipboard, ready for you to paste elsewhere. This will not work, however, on Safari or other browsers using the webkit engine.
The icon opens a separate window with an app that displays basic information about the characters for that row.
The Get all forms button produces 4 copies of the content in the input area. The copies are, respectively, all lowercase, all uppercase, all NFC normalised, and all NFD normalised.
Updated 2 April, 2021