This part is for those who don't want to install software and need an online easy solution, of courses, which is the most favored option.
1. Bear File Converter
Bear File Converter is the most frequently mentioned and popular MP3 to MIDI converter online. It can help you convert MP3, WAV, OGG, AAC and other common audio formats to MIDI without downloading plug-ins or registering an account. The whole conversion process is as easy as 1-2-3: Upload an audio file, hit “Convert” button, and download the converted MIDI file. Then you will get a file with .mid. Bear File Converter also allows batch download converted MIDI files.
The only limit of Bear File Converter is it only supports maximum 50 MB file upload.
2. Online Audio to MIDI Converter
Online Audio to MIDI Converter is devoted to offering free and easy online solution of converting audio tracks to MIDI files, yes, as its name implies. You can upload audio in almost all common file types on the website, and it also enables directly converting URLs from OneDrive and Dropbox. Another highlight making it different from its counterparts is it supports links pointing to video hosting websites, including Vimeo, Dailymotion, SoundCloud, BlipTV, Arte, Ard, 3Sat, etc. Here shows you how to convert an MP3 file from a local drive to MIDI.
Step 1. Click the Choose File button on the page.
Step 2. Scroll down and hit the blue Start conversion button.
Step 3. Wait for the process, then download the MIDI file.