Candle is described as 'GRBL controller application with G-Code visualizer written in Qt' and is an app. There are more than 10 alternatives to Candle for a variety of platforms, including Windows, Linux, Mac, Raspberry Pi and Snapcraft apps. The best Candle alternative is Universal Gcode Sender, which is both free and Open Source. Other great apps like Candle are Rayforge, LightBurn, gSender and bCNC.
A free CNC controller software that works only with Mk3 and Mk4 USB controllers sold by PlanetCNC. You can use this software on PCs running Windows, macOS, RaspberryPi, or Linux OS.
