Free Online Audio to MIDI Converter
Turn MP3, WAV, FLAC, OGG, M4A, instrument recordings, or voice memos into editable MIDI notes. Download the .mid file or open it directly in the MIDI editor.
MIDI output
Your MIDI will appear here
Free to convert
Works online
Editable .mid file
Free Online Audio to MIDI Converter
Turn recordings into notes you can edit
Move from an audio idea to editable MIDI without installing a desktop converter.
Audio to MIDI Use Cases
Capture ideas, study performances, and rebuild parts
Use the generated MIDI as a starting point, then refine timing and notes in the editor.
Capture a melody
Sing or play an idea, convert it to MIDI, and assign the notes to any virtual instrument.
Learn a performance
Inspect a riff or chord passage on a piano roll instead of repeatedly guessing by ear.
Rebuild a production
Extract an editable starting point from a reference recording, then correct and rearrange it in your DAW.
How Audio to MIDI Works
Convert Audio to MIDI online in three steps
Upload a supported audio file, detect the notes, then download or edit your MIDI.
1. Upload audio
Choose an MP3, WAV, OGG, FLAC, or M4A file up to 50 MB.
2. Convert Audio to MIDI
The transcription model detects pitches, onsets, lengths, and note strength.
3. Download or edit MIDI
Save the .mid file or open it directly in the online MIDI editor.
Audio to MIDI FAQ
Answers about converting audio into MIDI notes
Is this Audio to MIDI converter free?
Yes. You can convert compatible audio files and download the MIDI result without paying for each conversion.
Which files can I use for Audio to MIDI conversion?
The converter accepts MP3, WAV, OGG, FLAC, and M4A files up to 50 MB, subject to your browser’s audio codec support.
Can Audio to MIDI convert a full song?
It can detect notes in mixed audio, but dense songs often create crowded results. A solo instrument, isolated stem, or clear melody usually produces cleaner MIDI.
Will the MIDI sound exactly like the original audio?
No. MIDI contains note instructions rather than the original instrument sound. Choose a sound in your DAW or the MIDI editor.
Can I edit the converted MIDI online?
Yes. After conversion, open the result directly in the MIDI editor to move notes, adjust timing, transpose phrases, and export the file again.