1.grbl / grblAn open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight ArduinoCOther license6.3K total3.2K forks+161 starsfrom 6,154 · score 5.09
2.arkypita / LaserGRBLLaser optimized GUI for GRBLgrblgcodeengraverlaserC#Other license1.7K total624 forks+99 starsfrom 1,571 · score 4.61
3.synthetos / g2g2core - The Next Generationcnccnc-controller3d-printinggcodelasercuttermotion-planning+1 moreC++Other license679 total299 forks+8 starsfrom 671 · score 2.20
4.arpruss / gcodeplotUse a 3-axis machine as a pen plotterPythonOther license201 total76 forks+8 starsfrom 193 · score 2.20