How it works
Drop an audio file above and the transcription model runs entirely in your browser. Your recording is never uploaded to any server. When the conversion finishes, download a standard .mid file and open it in any DAW — Ableton Live, Logic Pro, FL Studio, Pro Tools, Cubase, Reaper, GarageBand, or any MIDI-compatible software.
Supported formats
- Audio: MP3, WAV, M4A, AAC, FLAC, AIFF, OGG, Opus, WebM
- Video (audio track): MP4, M4V, MOV
If your browser can play the file, this tool can transcribe it. Decoding is handled by the browser itself.
Tips for best results
- Clean, single-instrument recordings convert best — solo piano, guitar, voice, or violin.
- WAV and FLAC tend to produce cleaner note detection than heavily compressed MP3.
- Dense full mixes will produce an approximate transcription — the model hears everything at once and does not separate instruments.
- Drums and percussion are not transcribable (they have no pitch to detect).
Frequently asked questions
Is this audio to MIDI converter free?
Yes. Completely free, no account, no credits, no watermark. The page is supported by its open-source model, not by charging for conversions.
What does audio to MIDI conversion actually do?
An audio file is a recording of sound waves. MIDI is a list of notes — pitch, timing, velocity. This converter uses a neural network to listen to your recording and write down the notes it detects. The output is a standard MIDI file you can edit, rearrange, or replay with any virtual instrument in your DAW.
Can I convert audio to MIDI online without installing anything?
Yes. The model runs inside this browser tab. The only thing fetched from the network is the model file itself (under 1 MB), which is cached after the first load. No plugin, no download, no setup.
How accurate is the audio to MIDI conversion?
Accuracy depends almost entirely on the source recording. A clean solo instrument — piano, guitar, or voice — will produce most notes correctly with some timing to tidy up. A dense full-band mix will give you a rough sketch where the loudest parts come through clearly and quieter parts are approximate.
Does it handle polyphonic audio and chords?
Yes. The model is polyphonic, meaning it can detect multiple notes sounding at the same time. Block chords, arpeggios, and two-hand piano parts are transcribed as multiple simultaneous notes, not flattened into a single melody.
Can I use this as audio to MIDI conversion software for my DAW?
The output is a standard .mid file compatible with every major DAW. Import the downloaded file into a MIDI track and assign any virtual instrument. From there you can quantize timing, fix individual notes, transpose, or rebuild the arrangement.
Is my audio uploaded to a server?
No. There is no upload endpoint. The file is read by the browser, decoded locally, and analyzed on your own machine. You can verify this in your browser's network panel — after the model is fetched, no request carries your audio.
Does it detect pitch bends and vibrato?
Yes. The model tracks pitch continuously rather than snapping to the nearest semitone. Guitar bends, vocal vibrato, and slides are written into the MIDI as pitch-bend events. You can edit or remove them in your DAW after conversion.