Simply powerful show control.
QLab allows you to control audio, video, and MIDI from a single workspace. The basic version of QLab is free and provides a powerful audio playback environment. For advanced users, licenses are available to enhance the audio features, as well as to add video and MIDI functionality.
Designed to make you faster. We've worked hard to create an intuitive environment for crafting your designs. Need to trim the head and tail of that cue? Just bring up the waveform editor and drag your start and end points. Want your video flipped horizontally and centered on the second projector? Click, drag, done. Cut and paste cues to new workspaces or even external spreadsheets. Decide you didn't like that adjustment? No problem, you can undo anything.
Rigorously engineered for first-class performance. QLab uses Apple's low latency CoreAudio framework to provide playback control accurate to a thousandth of a second. And by taking advantage of Apple's Quartz Composer technology, QLab allows you to completely customize video rendering in each cue, applying image filters and more.
Feeling curious? Take a tour of QLab or skip straight to the good stuff and try it yourself.
![[QLab screenshot]](/qlab/images/screenshot.png)
- Easily send all MIDI Voice, MIDI Show Control messages
- Trigger from incoming timecode (MTC or LTC)
- Independent matrix mixer for every cue
- Dead-easy vamping
- Full application scripting support
- Unlimited undo for any change
- Feature Highlights
- 48 independent channels of audio output per cue
- Sample-accurate synchronization of audio
- Full screen or custom video geometry
- Camera Cue for live video feeds
- Real-time video animations
- Completely customizable fade curves
- And much, much more...