Just browse the web for http://www.mp3j.us/ as just one site that offers both freeware and shareware audio and video utilities. Different search engines will locate other sites as well.
alright then not directly my mp3 to midi but mp3 to wav converter and then wav to midi converter is easily possible i guess? which two app you recommend for the two steps?
As long as the integrity of the files remain intact you could run a two step conversion process without difficulties. You would just have to try out different ones for each step to see which ones work the best there.