Audio to MIDI
Convert audio into editable MIDI notes
Transform any audio file or live recording into a MIDI track in seconds. Free, private, and powered by advanced machine learning — everything happens in your browser.
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What Is the AI Audio to MIDI Converter?
Intelligent listening technology that transcribes melodies, chords and instruments into editable MIDI data.
Sound Into Notes
Whether you are remixing a song, capturing a spontaneous idea, or learning a piece by ear, the converter turns audio into editable MIDI instantly — ready for any DAW or notation software.
100% Private & Secure
All transcription happens locally in your web browser. Your audio files and recordings are never uploaded to any server, ensuring complete privacy for your music and creative ideas.
Fast & Accurate AI Transcription
Powered by a lightweight neural network, the converter delivers reliable polyphonic transcription in seconds — generalizing across instruments and capturing expressive details like pitch variations.
What the Converter Captures
Polyphonic Transcription
Detects multiple simultaneous notes, making it perfect for chords, piano passages and layered instruments.
Microphone Recording
No file? No problem. Hum, sing, or play directly into your microphone and convert the recording to MIDI on the spot.
Pitch Bend Support
Captures subtle pitch variations and bends, preserving the expressive character of vocals, strings and synthesizers.
Audio to MIDI in 3 steps
Upload or record
Drag in an MP3, WAV, FLAC or OGG — or hum, sing or play straight into your microphone.
AI transcribes locally
A lightweight neural network detects notes, chords and pitch bends in a single pass, entirely in your browser.
Download the MIDI
Open the file in Ableton, Logic, FL Studio, Cubase, GarageBand or any notation software — and start editing.
Key Features of the Audio to MIDI Converter
Universal input
- —MP3, WAV, FLAC, OGG and other standard browser-playable formats.
- —Files of any length — limited only by your device's memory.
- —Mono and stereo sources handled automatically.
Smart transcription
- —Lightweight neural network that runs entirely in the browser.
- —Instrument-agnostic design — guitars, pianos, vocals, synths and more.
- —Polyphony and expressive pitch details captured in a single pass.
Built for real workflows
- —Producers — sample audio into MIDI for further editing.
- —Songwriters — capture vocal melodies as notation.
- —Educators & students — study harmony and train your ear.
Why Use This Audio to MIDI Converter
Totally Free
No paywalls, no watermarks, and no usage limits. Convert as many tracks or recordings as you want.
No Server Uploads
Your creative work stays on your device. We do not store, log, or transmit your audio anywhere.
Simple & Beautiful
A clean, dark-themed interface — upload, record, convert and download in a few clicks.
Accurate Enough for Pros
The underlying model is trusted by creators for transcription and pre-production workflows.
Instant Feedback
Results appear within seconds. No queues, no slow cloud processing.
Cross Platform
Works on Windows, macOS, Linux, Android and iOS — anywhere with a modern browser.
Frequently Asked Questions
What is an Audio to MIDI Converter?
An Audio to MIDI Converter is a tool that listens to an audio signal and transcribes the musical notes into MIDI data. MIDI files can be opened in digital audio workstations, notation software, and synthesizers for editing and playback.
Is this converter really free?
Yes. The tool is completely free to use with no hidden costs, subscriptions, or usage limits.
Do I need to install anything?
No. The entire converter runs inside your web browser. Just open the page, upload an audio file or record your microphone, and convert instantly.
Are my audio files uploaded to a server?
No. All processing happens locally on your device. Your files and recordings never leave your browser.
What audio formats are supported?
Any format supported by your browser's audio decoder, including MP3, WAV, FLAC, OGG, AAC, and M4A.
How accurate is the transcription?
The converter uses a modern neural network that generalizes across instruments and captures polyphonic notes. It works best on clear, single-instrument sources, but also handles mixed signals better than many traditional algorithms.
Can I use my microphone instead of uploading a file?
Absolutely. You can record directly from your microphone and convert the recording to MIDI without needing an audio file.
What is polyphonic transcription?
Polyphonic transcription means the tool can detect multiple notes playing at the same time, such as chords on a piano or overlapping guitar strings.
Does the output include pitch bends?
Yes. The model captures pitch variations and writes them into the MIDI file as pitch-bend events, helping preserve the expressive character of the original performance.
Can I use the generated MIDI in my DAW?
Yes. The downloaded MIDI file is compatible with all major DAWs and notation software, including Ableton Live, FL Studio, Logic Pro, Cubase, and GarageBand.
Turn your MIDI ideas into full tracks
Transcription is step one — the AceStep workspace takes the idea the rest of the way.
Split the Song First
Convert a dense mix into stems before transcribing — an isolated piano, guitar or vocal stem gives dramatically cleaner MIDI than the full mix.
Open Get Stems → Melody → full songProduce the Idea
Captured a melody you love? Describe it in the generator and get a fully arranged, royalty-free song built around it in about 20 seconds.
Open One-Click Create →Try the Free AI Audio to MIDI Converter Now
Upload your first track or record a melody and turn it into MIDI in seconds.
Convert Audio to MIDI →Free · No uploads · Polyphonic transcription