Is there any online text conversion service?

Question

Text Processing Automation

Is there any service for processing text from a program version to a regular one and vice versa?
Let's say the text in the program is:
"Hi!/nHow are you?"
when converted, it will be already:
"Hi
, how are you?"
On the contrary, to also transform
I can write it myself, but I don’t want to spend time on it