Insert a separator of your choice between the characters of any text. By default it places one space between every single character, so abc becomes a b c, but you can change the separator to a comma, a dash, a pipe or any custom string. Set the "every N chars" value higher to group characters, for example every 2 chars turns abcdef into ab cd ef. The optional "skip whitespace" mode ignores spaces, tabs and newlines when counting characters so they do not get their own separators.
Handy for spacing out letters, building spaced-out headings, formatting serial numbers or preparing tokenized text. Everything runs locally in your browser — your text never leaves your device.