What this is supposed to do is to convert text to numbers and then numbers to text. The codes button is to copy & paste the code to decode it to a letter. You can even convert numbers to even more numbers!
This was all me. No YouTube tutorials nothing. All me. Note: After you convert make sure to copy the code and the re-click the green flag then you can put in decode or encode and paste if you need to. Feel free to take the code or to advertise in the comments. Make sure you give credit if you use my code!