QLab 4 is a free program, with additional optional features that can be unlocked by purchasing and installing a license. This chart shows which of the major features are enabled by each type of license.
Most of the advanced features can be used experimentally without a license installed, and will only require the license if you re-open a saved workspace that uses these features.
For those features which cannot be tested in this way, QLab has a demo mode which enables all features for twenty minutes. While demo mode is active, all of QLab’s licensed features are available, but saving, copying, and pasting are disabled. All workspaces will automatically close after 20 minutes. Demo mode will exit when you quit QLab.
To activate demo mode, choose Start Demo Mode… from the QLab menu.
|Feature||Free||Pro Audio||Pro Video||Pro Lighting|
|Channels of audio output||2||64||2||2|
|Channels of audio per file||2||24||2||2|
|Audio waveform view|
|Unlimited slices per Audio or Video cue|
|Sample-accurate playback sync|
|Unlimited cue lists|
|Unlimited cue carts|
|Live fade previews|
|Edit audio output routing|
|Edit audio output names|
|Audio effects on cues|
|Audio effects on cue outputs|
|Audio effects on device outputs|
|Audio effects fading|
|Audio playback rate fading|
|Single-screen video outputs||1||1||unlimited||1|
|Multi-screen video outputs||0||0||unlimited||0|
|1000 video layers|
|Full-surface Video cues|
|Custom geometry Video cues|
|Fade Video cues|
|Video playback rate fading|
|Masking & edge blending|
|Surface warping & keystone correction|
|Syphon input & output|
|Blackmagic device input & output|
|Patchable DMX addresses||16||16||16||unlimited|
|Remote control via OSC, MIDI, MSC, iOS app|
|MIDI File cues|
|Arm & Disarm cues|
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