PRIVATE · RUNS IN YOUR BROWSER
MP3 to MIDI
Use this audio to MIDI converter with a short MP3 or WAV recording to download an editable MIDI note draft. Your audio stays on this device. Listen to the result and manually correct any extra or missing notes.
Tested inputs: MP3, WAV, M4A, FLAC, OGG, AAC (Edge on Windows). Limits: 60 seconds of decoded audio / 20 MB (20,971,520 bytes) per file.
Choose a file to begin.
Download MIDITurn a MIDI file into printable sheet music
How to use
Choose a file, convert, then download the .mid file and open it on an instrument track in your music software.
Tested with short synthetic MP3 melody, chord and bass samples. Chord and bass results included extra or fragmented notes. Review the MIDI before using it. This first version exports one note track, without pitch bends or instrument separation.
Vocal to MIDI: what has been tested?
The documented tests used short synthetic melody, chord and bass samples. Accuracy on recorded singing has not been verified.
Frequently asked questions
Does voice to MIDI here use a live microphone?
This page uses the audio file you choose with the file picker. It does not provide a live microphone recording control.
Convert MP3 file to MIDI: how do I download the result?
Choose your file, select Convert to MIDI, then use Download MIDI when conversion finishes.
Can I convert MP3 into MIDI without uploading my recording?
Yes, audio processing and MIDI creation run in your browser, and the recording is not sent to a server.
Will every note be correct?
No, our chord and bass tests produced extra or fragmented notes, so review the MIDI before using it.
How do I convert WAV to MIDI?
Choose a WAV file, select Convert to MIDI, then download the result. Our PCM WAV sample converted successfully in Edge on Windows, but produced extra notes that needed correction.
Which input formats have been tested?
MP3, WAV, M4A, FLAC, OGG, AAC samples each converted and produced a downloadable MIDI file in our Edge on Windows test. We tested one short synthetic melody in each format; this does not establish support for every codec or browser. The tested encodings were MP3, PCM WAV, AAC in M4A, FLAC, Vorbis in OGG, and ADTS AAC.
What are the file limits?
Tested inputs: MP3, WAV, M4A, FLAC, OGG, AAC (Edge on Windows). Limits: 60 seconds of decoded audio / 20 MB (20,971,520 bytes) per file. Files over the size limit were rejected before decoding; longer decoded recordings were rejected before conversion.
Can I change MP3 to MIDI here?
Yes. Choose your MP3 file, run the conversion, then download and review the MIDI note draft.