QLC+ is described as 'free and cross-platform software to control DMX or analog lighting systems like moving heads, dimmers, scanners etc. QLC+ runs on Linux, Windows, OSX and the Raspberry Pi'. There are four alternatives to QLC+ for Windows, Linux and Mac. The best alternative is Cuelux. It's not free, so if you're looking for a free alternative, you could try DMXControl or MagicQ PC.
Cuelux is a DMX 512 lighting controller for intelligent lights, LED, dimmers, lasers and various other effects. The programme is platform-independent and available on Mac OS X, Microsoft Windows and Ubuntu Linux.
Modern lighting offers fantastic possibilities, however, this also requires a powerful and intelligent control system. DMXControl permits you to maximise this potential without the need to spend a lot of money.
ONYX is envisioned for creative professionals and new beginners alike. It scales from the smallest shows to the largest touring productions with easy-to-use tools and optimized graphical work environments that can adapt to any task and complexity.