CNCjs is an open-source, web-based interface designed for CNC controllers running Grbl, Marlin, Smoothieware, or TinyG. Because it runs in a browser but communicates with hardware, the download and installation process depends on your operating system and technical comfort level. This guide covers how to download and set up CNCjs for your workshop. Choosing the Right Version for Your Setup
If the desktop application fails to open on Windows, you may need to run it as an administrator or check your firewall settings. For NPM installations, if you encounter "permission denied" errors, try using the sudo prefix on Linux or running your command prompt as an administrator on Windows. Always ensure your USB drivers for your CNC controller are up to date, as the software cannot communicate with the machine if the computer doesn't recognize the hardware. cnc js download
Once you have successfully downloaded and opened CNCjs, you need to connect it to your hardware. Select the correct serial port from the dropdown menu, which usually appears as COM followed by a number on Windows or /dev/tty on Linux and Mac. Set your baud rate to match your controller—115200 is standard for most modern Grbl boards. Click open to establish the connection. Why Choose CNCjs CNCjs is an open-source, web-based interface designed for