CueSync vs QLC+: Is Free Lighting Software Actually Cheaper? (2026)

The Appeal of Free

QLC+ is one of the most popular open-source lighting control applications in the world — and for good reason. It's free, it runs on Windows, macOS, and Linux, and it gives you direct control over DMX fixtures. For hobbyists and students learning lighting, it's an excellent starting point.

But if you're a working professional — a mobile DJ, a club resident, a lighting designer running corporate events — "free" has hidden costs that add up fast.

What QLC+ Does Well

Credit where it's due. QLC+ offers:

• Direct DMX control via USB adapters (ENTTEC, DMXking, etc.)
• Virtual console with buttons, sliders, and speed dials
• Scene and chaser editors for programming static looks and sequences
• Cross-platform support on Windows, macOS, and Linux
• Zero cost — fully open-source under the Apache 2.0 license

For a community theater running the same show every night with pre-programmed cues, QLC+ can absolutely get the job done.

Where QLC+ Falls Short for Live Performance

The moment you step into live, improvised performance — DJ sets, corporate events with variable timelines, festivals with back-to-back acts — QLC+'s limitations become the bottleneck.

No Real-Time Beat Synchronization

QLC+ has no understanding of music. It can't detect beats, phrases, energy levels, or drops. Every cue must be triggered manually or programmed in advance.

CueSync analyzes audio in real time with sub-5ms latency. It detects beats, downbeats, phrase boundaries, energy curves, and drops — then maps those events to any protocol in your rig.

Limited Protocol Support

QLC+ supports DMX512 via USB adapters, Art-Net, and sACN. That covers lighting, but modern live events involve more than fixtures.

CueSync supports 13 output protocols: GrandMA2 (Telnet and OSC), GrandMA3 (TCP and UDP OSC), Avolites Titan, ETC Eos, ChamSys MagicQ, Resolume, disguise (d3), TouchDesigner, Unreal Engine 5, QLab (TCP and UDP), MIDI Show Control, Pangolin Beyond, and Custom OSC. In addition, CueSync reads Pioneer PRO DJ LINK, Ableton Link, and MIDI Clock as input sources. One platform drives your entire production rig.

No Console Integration

QLC+ operates as a standalone controller. It can't send commands to a GrandMA3 or trigger executors on an Avolites Titan — it replaces them (poorly, at scale).

CueSync is designed to work alongside professional consoles. It drives executors, fires macros, and triggers sequences on your existing console over the network. Your LD keeps full manual override at all times.

Manual Show Prep

Every QLC+ show requires manual programming: building scenes, creating chasers, assigning virtual console buttons, and linking cues to timing. For a DJ event, this means hours of prep for a set that will be improvised anyway.

CueSync's AutoPilot eliminates show prep for improvised performances. Configure your venue profile once — audio routing, protocol mapping, fixture assignments — and every future gig at that venue loads in seconds.

Side-by-Side Comparison

The Real Cost of "Free"

Let's do the math for a working DJ playing 4 gigs per month:

QLC+ route:

• Software: $0
• Art-Net or sACN node (ENTTEC ODE / DMXking eDMX2 / Chauvet Net-X II): $200–280
• Show prep: 3–5 hours per gig × $50/hr = $600–1,000/month in labor
• Manual operation during show: divided attention, inconsistent results

CueSync route:

• Software: $15/month ($11/month annual)
• No additional hardware required (network-based protocols)
• Show prep after first venue setup: ~5 minutes
• AutoPilot runs hands-free with CuePad overrides

At four gigs per month, QLC+ costs you $600+ in prep time alone. CueSync costs $129 a year and gives you that time back.

When QLC+ Is the Right Choice

QLC+ makes sense if you:

• Are learning lighting control for the first time
• Run the same pre-programmed show repeatedly (community theater, church, etc.)
• Need a free solution and have unlimited prep time
• Work exclusively on Linux (CueSync supports macOS 12+ at launch; Windows is on the roadmap)

When CueSync Is the Right Choice

CueSync is built for professionals who:

• Perform live, improvised shows (DJ sets, corporate events, festivals)
• Need real-time audio-reactive automation
• Work with professional consoles (GrandMA, Avolites, QLab)
• Control visuals alongside lighting (Resolume, Disguise, TouchDesigner)
• Value their prep time and need to load venues in seconds

Try Both

QLC+ is free — download it and see what manual DMX control feels like. Then download CueSync free and experience the difference real-time beat synchronization makes. CueSync runs in full read-only mode at no cost, so you can explore every feature before subscribing.

Compare CueSync vs QLC+ in detail →