DJ

DJ is a two-deck DJ app that runs entirely in your browser. Load your own uploads or music made in ProMediaFlow; each track is analysed on your device for tempo, beat grid, key (Camelot), loudness and energy. Mix with play / cue / sync, a pitch fader, 3-band kill EQ, filter, echo, channel faders and a constant-power crossfader, four hot cues and beat loops, a master limiter and pre-fader headphone cue (outputs 3–4 of a 4-channel controller, or a second output device). The auto-playlist orders a set by harmonic key, tempo and an energy shape (warm-up → peak → cool-down); the Auto-DJ then mixes it with phrase-aligned transitions — bass swap, filter out, echo out or a downbeat cut — and hands any control back the moment you touch it. Pioneer DJ DDJ-FLX4 works out of the box; any other MIDI controller via MIDI learn (Chrome / Edge; Safari and iPad get on-screen decks).