QLab is macOS live show-control software that creates and runs audio, video, lighting, and show-control cues from a single timeline. It runs on Apple Silicon and Intel Macs with macOS 11 (Big Sur) or later and is Mac-only. The current release is QLab 5.6.3. It supports playback and cue-list control, OSC, MIDI/MSC, timecode (LTC/MTC), Art-Net/DMX, NDI, Syphon, and camera inputs; licensing unlocks Audio, Video, and Lighting features.