MP3 to MIDI

Convert MP3 to MIDI Online

Convert MP3 or other supported audio to MIDI by transcribing detected pitches and note timing. Upload MP3, WAV or M4A audio and download a standard MIDI file for editing in a DAW or notation program.

How to convert MP3 to MIDI online

  1. Choose an MP3, WAV or M4A audio file.
  2. Preview the recording and confirm it is the intended source.
  3. Start note detection and wait for the audio queue.
  4. Download the standard MIDI file and open it in your music software.

Supported inputs

  • MP3 audio
  • WAV audio
  • M4A audio
  • Single-instrument and polyphonic recordings

Available outputs

  • Standard MIDI file (.mid)
  • Detected note pitches, starts, ends and velocities

Why use this tool

Common problems

The MIDI contains extra notes
Use a cleaner recording with less percussion, noise and reverb. Administrators can also raise detection thresholds.
Some notes are missing
Clear single-instrument recordings work best. Lower thresholds can detect quieter notes but may add false positives.
The recording is too long
Trim it with the MP3 Cutter and retry within the duration limit configured by the administrator.

Frequently asked questions

Will the MIDI sound exactly like the MP3?
No. MIDI stores detected notes and performance data, not the original sound. Instrument choice happens in your DAW or MIDI player.
Can it detect chords?
Yes, the transcription engine can detect multiple simultaneous pitches, though clean isolated instruments produce the most accurate result.
Which programs open MIDI files?
Most DAWs and notation applications can import standard MID files.

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