Press "w" to decode a base64 string and "q" to encode one. If you find any glitches please tell me in the comments.
Base64 is a really cool way of encoding things to make them easier to send over the internet. If you want to find out more you can look at the Wikipedia page on it: https://en.wikipedia.org/wiki/Base64 Feel free to use if you want, though I don't know why you would want to :P just give credit if you do.