01
Choose audio
Drop an MP3, WAV, M4A, or FLAC file. The browser decodes it on your device.
Private browser tool · No sign-in
Turn recorded sound into MIDI you can actually edit.
Convert audio to MIDI in your browser, inspect the detected notes, and continue in a focused Piano Roll when the result needs work.
Free local conversionStandard .mid exportMP3 · WAV · M4A · FLAC
Quick converter
Audio in · editable notes out
Local session
Drop audio or choose a file
MP3, WAV, M4A, FLAC · local-first
Audio processing stays on this device.
Need to inspect, clean, or arrange the notes?
Use Advanced WorkspaceThe conversion path
Fast when it works. Inspectable when it doesn’t.
02
Convert to notes
Choose melody or polyphonic output. Full songs can be split into stems before transcription.
03
Edit or download
Download immediately, or open the advanced workspace to clean and shape every note.
Advanced workspaceEditable result
Simple first, advanced when needed
A converter at the front. A real workspace behind it.
Use the simple converter for a quick MIDI file. Move to the Advanced Workspace when you need stem tracks, A/B playback, confidence review, quantize, markers, loop regions, or detailed note edits.
Open Advanced WorkspaceLocal means local.
No account gateChoose a file and convert it without registering. Authentication is reserved for future cloud-saving features.
No free-flow uploadThe current audio decode, model inference, editing, and export path runs in your browser.
Common questions
Audio to MIDI FAQ
Does my audio get uploaded?
No. The current free converter decodes, separates, and transcribes audio in your browser. Your source audio is not sent to our server.
Which files can I convert?
The current converter accepts MP3, WAV, M4A, and FLAC files up to 50 MB, subject to your browser's decoding support.
Can I edit the MIDI before downloading?
Yes. The Advanced Workspace includes a Piano Roll, note editing, quantize, cleanup, velocity tools, markers, loop playback, and multi-track MIDI export.
Does it work with full songs?
Yes, with an important caveat: dense mixes are harder to transcribe. The converter can separate vocals, bass, drums, and other instruments locally before creating pitched MIDI tracks.