AUDIO → MIDI
MP3 to MIDI
Your audio is processed in this browser. It is never uploaded.
CONVERSION COMPLETE
Your MIDI notes
Detected notes
| # | Note | Start | Length |
|---|
This is a best-effort transcription of the clearest melody detected in the audio.
HOW TO USE
From audio to editable notes
- 01
Select one audio file
Choose or drop a supported recording. - 02
Convert in this browser
We detect a melody and write a standard MIDI file. - 03
Review and download
Check the notes, then open the .mid file in a DAW.
FILE SUPPORT
Supported audio
MP3, WAV, FLAC, OGG (Vorbis), M4A (AAC), and AAC audio. M4A, AAC, FLAC, and OGG must be decodable by your browser.
Not supported: video files such as MP4 or MOV, and WMA. A file that your browser cannot decode will be rejected with an error.
Limit: up to 5 minutes per file. Processing speed and memory use depend on your device.
WHAT TO EXPECT
Clear melodies work best
This lightweight converter estimates a dominant, single-note melody. Chords, full mixes, drums, heavy reverb, and overlapping instruments may produce incomplete or incorrect notes. It does not separate instruments or promise a perfect transcription. No account is needed, and files stay in your browser.
FAQ
Audio to MIDI questions
Can I use this as a WAV to MIDI converter?
Yes. Choose a WAV file to convert it to a standard .mid file. The same local workflow also accepts MP3 and the other listed audio formats when your browser can decode them.
Does the MP3 to MIDI converter upload my audio?
No. Audio decoding, note detection, and MIDI creation run in this browser. The page has no conversion server.
What does this MIDI converter do with songs or chords?
It estimates a dominant melody. Dense or polyphonic recordings can contain several simultaneous notes, and this simple converter may miss or misidentify them.
Can I convert a video to MIDI?
No. MP4 and MOV video files are not supported. Extract an audio file first, then choose a supported audio format.