Free MP3 to MIDI converter

Online AI Audio to MIDI Converter

Convert MP3, WAV, FLAC, OGG, M4A, or a microphone recording into a downloadable MIDI file in your browser.

Drag and drop your audio file here, or click to browse

Supported formats: .wav, .mp3, .m4a, .flac, .ogg, .webm

Audio to editable notes

What is an AI audio to MIDI converter?

An AI audio to MIDI converter listens for pitch, timing, and note length in a recording, then writes those musical events into a MIDI file. It is useful when an idea starts as a hummed hook, guitar riff, piano sketch, or rough demo and you want to edit the notes instead of redrawing them by hand.

Record or upload

Detect melody notes

Download or edit MIDI

Home studio producer converting an audio waveform into MIDI notes

How it works

From audio file to MIDI in three steps

Keep the first capture fast, then refine the musical idea after the notes are editable.

Upload or record

Start with a short MP3, WAV, M4A, FLAC, OGG, WebM, or a microphone take captured directly in the browser.

Let AI trace the notes

The converter analyzes pitch movement, onset timing, and note duration to turn the performance into structured MIDI data.

Download or open the editor

Save the MIDI file, or send it straight into Creatune’s online MIDI editor to clean timing, length, and phrasing.

3D waveform turning into MIDI piano-roll blocks

Edit the result

Turn conversion into arrangement, not just a file.

Audio-to-MIDI is strongest when it becomes the start of a workflow. After conversion, open the MIDI editor to correct note boundaries, test chords, move phrases, and shape the part before bringing it into a DAW.

Open MIDI editor

Use cases

Built for fast musical capture

Voice

Hum a hook before it fades

Record a vocal melody, convert it to MIDI, then test it with synths, piano, or other instruments.

Instruments

Trace riffs and sketches

Turn guitar, piano, or simple instrumental ideas into editable notes for production and arrangement.

Learning

See what you played

Use MIDI output to inspect timing, pitch movement, and phrase shape in a more visual way than audio alone.

Better results

How to get cleaner MIDI

Use a clear single-note source

Melodies, bass lines, whistles, and simple leads usually convert more cleanly than dense full mixes.

Keep the recording tight

Trim silence and background noise so the model can focus on the musical phrase you care about.

Treat MIDI as editable draft

Expect to polish timing, note length, and extra notes in the editor, especially after expressive performances.

Music learner recording a melody and reviewing MIDI notes on a tablet

Source suitability

Which audio converts to MIDI most cleanly?

Audio-to-MIDI estimates musical events from sound, so the amount of overlap in the recording shapes how much cleanup the draft will need.

Source

Expected draft

Useful preparation

Single melody

Usually the clearest pitch and timing outline

Keep one voice or instrument forward, trim silence, and avoid reverb-heavy rooms.

Expressive solo

Good musical contour with possible bends or extra note edges

Use a steady level, reduce background noise, and plan to adjust note lengths after conversion.

Chords or full mix

A rough sketch that may contain missing or stray notes

Isolate a melodic stem first when possible, then treat the MIDI as reference material rather than a finished transcription.

Clean melody, noisy performance, and dense mix producing different levels of MIDI accuracy — A focused monophonic source usually becomes a cleaner draft than layered or noisy audio.

After conversion

Turn the MIDI draft into a production-ready part

The useful result is not just a download. Review the detected phrase, make intentional edits, then choose an instrument and production context.

Clean the note map

Remove short false notes, join broken sustains, and compare the contour with the source. Correct obvious pitch errors before tightening the rhythm.

Shape timing and expression

Quantize selectively instead of forcing every note to the grid. Adjust duration and velocity so the part keeps the musical character of the original performance.

Arrange or export

Try the phrase with a new instrument, build harmony around it, or export MIDI to a DAW. Keep the audio as a reference when the original articulation matters.

Edit converted MIDI notes online

Open the browser MIDI editor to correct pitch, timing, duration, velocity, and phrase structure before arranging the part.

Separate a cleaner melodic stem

When the source is a full mix, split it into production stems first and convert the most focused melody or bass track.

Plans and credits

Choose a plan for Audio to MIDI

Use Audio to MIDI with flexible monthly, annual, or one-time credits shared across Creatune.

Basic

12,000 credits/year

Save 33%

$14.9$9.9/month

billed annually

Save 33% — Limited Time Offer!

12,000 credits/year
Up to 1,200 standard music generations
Up to 800 premium music generations
3,376 seconds Music Video
MP3 Downloads
Creatune Omni Model Access
Commercial License
365-day Cloud Storage

Pro

30,000 credits/year

Save 50%

$39.9$19.9/month

billed annually

Save 50% — Limited Time Offer!

30,000 credits/year
Up to 3,000 standard music generations
Up to 2,000 premium music generations
8,296 seconds Music Video
Everything in Basic
Creatune Omni Model Access
Commercial License
30-day Cloud Storage

Best Value

Max

84,000 credits/year

Save 56%

$90.9$39.9/month

billed annually

Save 56% — Limited Time Offer!

Credits per year

84,000

84,000 credits/year
Up to 8,400 standard music generations
Up to 5,600 premium music generations
23,640 seconds Music Video
Everything in Pro
Creatune Omni Model Access
Commercial License
Priority Queue
Unlimited Cloud Storage
Priority Email Support

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After payment, credits activate automatically for Creatune AI music, lyrics, audio editing, and music video workflows.

15 free credits on signupAutomatic credit deliveryWorks across Creatune AI music tools

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FAQ

AI Audio to MIDI Questions

What is AI audio to MIDI?+

AI audio to MIDI converts a recording into MIDI note data. Instead of editing a waveform, you get notes that can be moved, shortened, quantized, or assigned to virtual instruments.

Can I convert MP3 to MIDI online?+

Yes. Upload an MP3 or another supported audio format, run the converter in your browser, and download the MIDI file when the analysis finishes.

Does it work with voice recordings?+

Yes. Short hummed or sung melodies are a practical source for voice-to-MIDI capture, especially when the recording is clean and focused on one melody.

Will the MIDI be perfect?+

No converter is perfect. AI gives you a strong editable draft, and the best workflow is to clean timing, note length, and stray notes in the MIDI editor.

Convert the melody while it is still fresh.

Upload a file or record a quick take, then turn the result into MIDI you can edit, arrange, and reuse.

Start audio to MIDI