Free audio to MIDI converter
Drop any track and hear what Resonade heard: a playable piano-roll of the conversion, with its key, BPM and Camelot code. Free, no account.
Drop your track here
MP3, WAV or M4A, up to 15 MB. Analyzed in memory, never stored.
Drop a track
MP3, WAV or M4A up to 15 MB. Long tracks are read from the middle: intros lie about the key.
Hear what it heard
The conversion appears as a playable piano-roll: the melodic and harmonic material Resonade read from your audio, plus the detected key with a confidence score, the tempo and the Camelot code.
Nothing is kept
Your audio is analyzed in memory and discarded. It is never stored, shared or used to train anything.
Conversion, honestly explained
How does audio to MIDI conversion work?
Resonade decodes your file on your own device and sends a short mono analysis version to the server. There it reads the harmonic fingerprint of the audio: where notes start, which pitches carry the energy, how the chords move, and at what tempo. That reading becomes MIDI notes you can see and play in the piano-roll above, in the detected key of your track.
Does it work on full mixes, or only single instruments?
Both, with an honest caveat. A clear melodic source, a synth lead, a piano loop, a topline, converts cleanest. A full mix still works: Resonade pulls out the dominant melodic line and the chord progression underneath it. Dense, heavily layered mixes are the hard case, so treat the result there as a sketch of what the track is doing rather than a note-perfect transcription.
How do I download the MIDI file?
The conversion preview above is free and anonymous. Create a free account and Resonade goes one step further: it composes eight original MIDI takes in the same vibe as your upload, each downloadable as a standard .mid file, next to the conversion itself in a built-in piano-roll editor. Your first 3 tracks are free, no card needed.
Why does Resonade compose new MIDI instead of only transcribing?
Because a transcription of someone else's record is something you cannot release, and a transcription of your own demo is something you already have. The conversion shows you what was heard; the eight takes are freshly written MIDI in the same rhythm, feel and harmonic colour. That is material you can actually build a track on.
Which DAWs can use the MIDI?
All of them. Downloads are standard MIDI (.mid) files, so they drop straight into FL Studio, Ableton Live, Logic Pro, Cubase, Studio One, Bitwig, Pro Tools, Reaper and any other DAW or hardware that reads MIDI.