Choose the key that you are transposing from. This is the original key of the song. There is no support for flat notes and keys at this time, so please use the relative sharp. Instead of "B flat", use "A#". Use all capitals, and do not put a space between the letter and the "#" sign. This is a slightly updated version, allowing you to transpose multiple notes at once.
I created this to help me with some composing for piano music that I'm doing, and I figured it might help other people too.
