Free MP3 to MIDI Converter - 100% Free and Secure

Convert MP3 to MIDI directly in your browser. Extract melodies and note events from MP3, WAV, M4A or FLAC, choose the detection detail, and download an editable MIDI file without signing up or entering a credit card.

  • 100% free
  • No login required
  • No credit card
  • Processed locally in your browser

Free MP3 to MIDI Converter

100% free
No signup
No credit card
Local processing
Conversion detail

Balanced note detection for most songs, vocals and instruments.

MIDI result

Your converted MIDI file will appear here.

Audio analysis runs on your device and the selected file is not uploaded to our server.

Music production laptop showing an MP3 waveform converted into editable green and coral MIDI piano roll notes

Turn an MP3 waveform into notes you can edit

The converter analyzes pitch, note onsets, timing and velocity, then writes the detected performance into a standard MIDI file for your DAW, notation app or hardware workflow.

  • Works best with clear vocals, piano, guitar, bass and other melodic parts.
  • Three detail presets help balance clean output against nuanced note capture.
  • The downloaded .mid file contains note data, not a copy of the original audio.

Free MP3 to MIDI converter features

A practical local conversion workflow for turning recorded audio into editable musical data.

Private browser processing

Your selected MP3 is decoded and analyzed on your device. The audio file is not sent to our server for conversion.

AI-assisted pitch transcription

A music transcription model detects pitches, note starts, durations and velocity from the audio signal.

Adjustable note detail

Choose Simple for cleaner melodies, Standard for balanced results or Detailed for more short notes and nuance.

Editable standard MIDI output

Download a .mid file for Ableton Live, FL Studio, Logic Pro, Cubase, GarageBand and other MIDI-compatible tools.

Ways to use free MP3 to MIDI conversion

Move musical ideas from fixed audio into workflows where notes, rhythm and instruments can be changed.

Remixes and new arrangements

Capture a clear melody or riff from an MP3, then change the instrument, tempo and arrangement in your DAW.

Practice and music study

Inspect detected notes in a piano roll to study pitch movement, timing and phrasing from a recording.

Songwriting from voice memos

Turn a sung, hummed or played melodic sketch into MIDI and develop it with virtual instruments.

Archive reusable musical ideas

Convert clean motifs from older demos into lightweight MIDI files that are easier to edit and reuse.

How to convert MP3 to MIDI for free

The entire conversion takes place in three straightforward steps inside your browser.

Choose your MP3 or audio file

Select or drag in an MP3, WAV, M4A or FLAC file up to 50 MB. Clear, focused recordings usually produce cleaner notes.

Select detail and start conversion

Pick Simple, Standard or Detailed, then let the local model analyze pitch and note timing while progress is displayed.

Review and download the MIDI

Check the detected note count, duration and range, then download the .mid file for further editing.

Free MP3 to MIDI converter FAQs