AUDIO → NOTE DATA

MP3 to MIDI

Drop one file. It is decoded and transcribed in this tab, then a standard .mid file is ready to download.

LOCAL
ONLY
No uploadNo accountOne file at a time

Conversion starts as soon as you choose a file. Clear recordings led by one instrument or voice usually produce a more useful draft than dense mixes or drums. Compare current free options in our mp3 to midi converter guide.

What you can bring in

The page asks your browser to decode the file. Containers and codecs are separate, so the same extension can behave differently. The table records the 0.8-second fixtures tested in desktop Chrome on October 29, 2026; it does not claim support in every browser.

Tested: worksMP3, WAV, FLAC, OGG, M4A, MP4, MOV, MKV, WebM
Also acceptedAAC, AIFF, AIF, OGA, Opus, M4V
Tested: failedAVI — not decoded by the tested Chrome build
Time limitOne file · up to 10 minutes
OutputStandard MIDI file (.mid)

Your recording stays on this device

The browser reads the file into memory. A bundled note model estimates pitches, starts, lengths and velocities here in the tab. The generated download is assembled locally.

  1. 01
    Decode

    Your browser opens the file and mixes its channels for analysis.

  2. 02
    Transcribe

    The bundled note model estimates editable note events.

  3. 03
    Download

    The page writes those events into a standard MIDI file.

Straight answers

Audio and MIDI are different kinds of data, so this is transcription—not a lossless format change.

How do I convert an MP3 file to MIDI?

Drop the MP3 above. The change from MP3 to MIDI starts immediately, and the download button appears when note transcription finishes.

Can I convert audio to MIDI without uploading it?

Yes. Decoding, model inference and MIDI writing happen in this browser tab. The selected file is not sent to a server.

What should I expect from the result?

Treat it as an editable draft. Solo piano, guitar, bass, voice or a hummed melody are more suitable than percussion, heavy reverb or a full mixed song. Check the notes in a DAW or notation app.

Is this an audio to MIDI or WAV to MIDI converter too?

Yes. MP3 to MIDI is the main workflow, and the same tool accepts the tested audio and video formats listed above. The result is one editable MIDI track you can inspect before downloading.

Why can a listed format still fail?

Containers and codecs are separate. For example, two MOV files can carry different audio codecs. If this browser cannot decode the audio track, the page reports that specific problem.