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Free WAV to MIDI Converter Online

Turn a WAV recording into notes with a free WAV to MIDI converter that runs in your browser. Preview the notes, edit them, then download the .mid file.

Your audio stays in this browser. The transcription model downloads on first use. No login needed.

Start with a clear single-instrument recording, such as solo piano or guitar. Dense mixes can produce extra or missed notes.

MIDI contains notes, not the original recording. This is an estimated transcription: check pitches, timing and note lengths. The preview plays a simple synth voice.

Notes

No notes yet

Add a recording and the transcribed notes appear here, ready to preview.

Where to go next

WAV to MIDI features

  • Coral headphones, a glowing round speaker and a potted plant by a window

    Basic Pitch in your browser

    The WAV to MIDI converter runs Spotify's open-source Basic Pitch model on your device to estimate the notes from your audio. The model downloads the first time you convert a file.

  • An acoustic guitar lying alone on a sunlit wooden desk

    Best on clear single instruments

    Solo piano, guitar or a clear melody work best in WAV to MIDI. Dense mixes can produce missing or extra notes.

  • Coral headphones on a glowing speaker beside a small wooden toy piano

    Preview and compare

    Inspect the notes on a piano roll and compare them with your original recording.

  • A closed kraft notebook beside a small wooden toy piano

    Notes ready to use

    Download the .mid file from the WAV to MIDI converter, or carry the notes into the editor in one click.

Who uses WAV to MIDI

  • An open blank notebook and a plain pencil beside a small wooden toy piano

    Songwriters

    Run a melody you played through the WAV to MIDI converter and edit the notes.

  • Coral headphones, two drumsticks and a small keyboard on a wooden desk

    Producers

    Use WAV to MIDI to turn a recorded riff into notes you can play with other sounds.

  • A pencil on a closed notebook, a cup of tea and a small toy piano by a window

    Students and teachers

    A piano roll from WAV to MIDI shows students the notes of a melody while they learn it.

  • A ukulele, a small wooden toy piano and a teal ribbon on a wooden desk

    Arrangers

    Arrangers get a starting point from a reference recording with WAV to MIDI.

Why choose WAV to MIDI

  • Runs on your device

    WAV to MIDI works in your browser, so your files stay on your device unless you save a result.

  • Honest about its limits

    WAV to MIDI results are estimates. Check pitches, timing and note lengths, and fix them in an editor.

  • From audio straight to the editor

    Audio from the cutter or from a separated stem arrives ready to convert, and the notes can move on to the editor.

  • Free to use

    WAV to MIDI is free and uses no credits. You only need an account to save results.

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How to use WAV to MIDI

  1. A hand setting down a plain kraft sleeve beside a microphone on a stand
    1

    Upload a file to the WAV to MIDI converter, or receive audio from music generation, trimming or a selected stem.

  2. A single ukulele alone on a wide wooden desk
    2

    Wait for the transcription to finish, then inspect and preview the notes.

  3. A kraft folder, a small toy piano and coral headphones on a wooden desk
    3

    Download or save the .mid file, or choose Edit these notes to carry the notes into the editor.

Turn a clear musical line into notes with WAV to MIDI

This WAV to MIDI converter runs Spotify's Basic Pitch model in your browser to transcribe real audio into notes. A clear single-instrument recording works best; complex mixes can create missing or extra notes.

The WAV to MIDI converter also accepts MP3, FLAC, OGG, M4A, AAC and WebM that your browser can decode, up to 50 MB and between 1 second and 10 minutes long. The .mid file stores note events, not sound, so the preview plays a simple synth voice instead of your original recording.

A silver microphone, a small wooden toy piano and coral headphones on a sunlit desk

Get better results from WAV to MIDI

WAV to MIDI works best with one instrument and little reverb, such as solo piano, guitar or a vocal line. If you only have a full song, separate it with AI Stem Splitter first and convert the track you want. Results are estimates, so check pitches, timing and note lengths against the original recording using the preview. Keep the clip short and focused: a chorus riff converts more cleanly than a whole song. If quiet notes go missing, try a closer recording with less background noise.

A single ukulele centered on a bare wooden desk

What to do after WAV to MIDI

Download the .mid file for your DAW, or choose Edit these notes to carry the notes into the editor and fix them. From there you can render the notes to sound or draft a lead sheet. WAV to MIDI transcription and download use no credits, and saving to your library is optional and needs sign-in.

A small keyboard and coral headphones on a wooden desk

Ready to try WAV to MIDI?

Add a clear recording at the top of the page and get editable notes back. The WAV to MIDI converter is free and works in your browser.

Open WAV to MIDI

WAV to MIDI FAQ

Is this WAV to MIDI converter free?

Yes. The WAV to MIDI converter is free: transcribing and downloading use no credits and need no account. The model downloads the first time you convert a file.

Which WAV files does the converter accept?

Any WAV your browser can decode, up to 50 MB and between 1 second and 10 minutes long. MP3, FLAC, OGG, M4A, AAC and WebM files also work if your browser supports them.

Does WAV to MIDI keep the original sound?

No. The .mid file stores note events rather than recorded audio, so the preview synthesizes the notes. Corrections can be made in MIDI Editor.

Can I convert a full song from WAV to MIDI?

You can try, but dense mixes produce missing or extra notes. For better results, split the song with AI Stem Splitter and convert one track with WAV to MIDI.

Is my WAV file uploaded to a server?

No. Your audio stays in this browser while WAV to MIDI estimates the notes. Only a result you choose to save is uploaded.