Best for untreated rooms
Shure SM58
Record close-up vocals in rooms with background noise or strong reflections.
View on Amazon🔒 Runs in your browser · nothing uploaded
Audio to MIDI Converter
This audio to MIDI converter turns recorded music into editable notes, free and private. Drop an MP3, WAV, FLAC, M4A, OGG, or compatible MP4 and the notes are transcribed on your device. No upload or sign-up.
Drop an audio file to convert to MIDI
MP3 · WAV · FLAC · M4A · MP4 · OGG · up to 100 MB — stays on your device
Have a melody in mind?
Record one voice or instrument for up to 60 seconds. Listen before converting.
Choose the part to convert
Drag the Start and End markers to choose a phrase, or enter exact times below.
Start with a clear 10–30 second phrase. Pauses inside your selection stay in place. The MIDI starts at the selection’s beginning.
Advanced settings
Loading the AI model…
Transcribing…
Your MIDI is ready
Compare before you buy
Hear the original, Raw MIDI, and the full Cleaned MIDI in this browser.
Nothing playing.
AI Clean MIDI
Local music rules refine the Basic Pitch transcription. Your MIDI stays on this device.
Full preview before purchase One-time payment No account or upload
Paid downloads must be completed in this browser. If payment succeeds but you do not return here, clear browser data, or change browser or device, the file may be unavailable. Do not pay again — read the Terms or contact support.
Powered by Spotify's open-source Basic Pitch model.
How to convert audio to MIDI
Three steps, all on your device. No software to install.
1
Choose or record audio
Add an audio file or a compatible MP4, or record a short melody with your microphone. Your recording stays on your device.
2
Listen, select, convert
Choose the phrase you need and listen before converting. Press Convert selection to MIDI to detect its notes.
3
Download your MIDI
Grab the .mid file (and a piano-roll image) and open it in any DAW or notation app to edit and remix.
Why use this audio to MIDI converter
Most free converters make you sign up, cap your conversions, or upload your audio to their servers. This audio to MIDI converter does none of that.
🔒
100% private — no upload
Your audio is decoded and transcribed on your own device. Nothing is ever sent to a server, so even a copyrighted demo or unreleased track stays with you.
🆓
Free & unlimited, no sign-up
No account, no daily caps, no watermark on the MIDI. Convert as many files as you want — the tool is just a web page running an open model.
🤖
AI pitch detection
Runs Spotify's open-source Basic Pitch neural net — polyphonic and instrument-agnostic, so chords, piano, guitar, vocals and leads all transcribe.
🎹
Real MIDI you can edit
Download a standard .mid you can drop straight into Ableton, FL Studio, Logic, GarageBand or MuseScore and edit note-by-note.
⚡
Instant & offline-friendly
No render queue and no round-trip. The ~1 MB model caches on your device, so the second conversion starts immediately.
🎚
Source-aware starting profiles
Choose Voice, Piano & Guitar, Bass, or General to set real detection and cleanup controls, then fine-tune any value for the recording.
What you can do with MIDI
🎼 Transcribe a melody
Hum or play an idea, convert it to MIDI, and keep building in your DAW instead of re-playing by ear.
🎸 Learn a riff or solo
Turn a guitar or piano part into notes you can slow down, study and re-voice.
🥁 Reuse a bassline or lead
Lift a monophonic line into MIDI to re-trigger with any instrument or sound design.
📝 Get sheet music
Import the MIDI into MuseScore or your notation app to print readable sheet music.
🎹 Quantize a live take
Convert a recorded performance to MIDI, then quantize and clean it up on a grid.
🎛 Sketch fast
Whistle, beatbox a melody, or play a quick idea and get an editable MIDI seed in seconds.
Audio to MIDI — FAQ
Is this audio to MIDI converter really free?
Yes. It is completely free with no sign-up, no daily limit and no watermark. The whole converter is a web page running an open-source model in your browser, so there is no server cost to gate behind a paywall.
Is my audio uploaded anywhere?
No. Your file is read and decoded locally with the Web Audio API, and the AI model runs on your device. The audio never leaves your computer or phone, which makes it safe for unreleased or copyrighted material.
What audio formats can I convert to MIDI?
The converter accepts MP3, WAV, FLAC, M4A/AAC, OGG, and MP4 files with a browser-compatible audio track. Codec support depends on the browser. For the cleanest result, use a clear recording where the melody or instrument stands out.
How accurate is the AI transcription?
It uses Spotify's Basic Pitch model, which is polyphonic and works across instruments. Clean, isolated parts (piano, guitar, vocals, leads) transcribe best; dense full mixes are harder, as they are for every audio-to-MIDI tool. You can fine-tune onset and note thresholds in Advanced settings.
Can I convert an MP3 to MIDI?
Yes — MP3 to MIDI is the most common use. Drop your MP3 in and download the MIDI. The same works for WAV, FLAC and M4A files.
Which apps can open the MIDI file?
The exported .mid is standard MIDI and opens in any DAW or notation software: Ableton Live, FL Studio, Logic Pro, GarageBand, Cubase, Reaper, MuseScore and more.
Does it work on mobile?
Yes. It runs in modern mobile browsers too. Larger files take longer on a phone since all the processing happens on your device, but nothing is uploaded.
Ready to turn your audio into MIDI?
Free, private and unlimited — right in your browser.
🎹 Convert audio to MIDI
