CNCjs
CNCjs project
Image source: Screenshot%20taken%20by%20EngiFree
Download from the vendor
github.com
CNCjs is an open-source CNC controller that works from the browser. It connects to machines with Grbl, Marlin, Smoothieware and TinyG controllers, shows the toolpath in 3D, and allows jogging, zeroing, running and stopping. You can install it on a small computer next to the machine, such as a Raspberry Pi, and control it from any computer or tablet on the network. It suits workshops with mills and routers.
Ratings & Reviews
| Licence type | Completely Free, Open Source |
|---|---|
| Licence terms | Open-source licence (MIT). Free to use for any purpose, including commercial work, with no time limit, no registration and no licence key. |
| Platforms | Linux, macOS, Windows, Runs in the Browser |
| Engineering field | Mechanical Engineering |
| Tool type | CAD & Drafting |
| Version checked | 1.11.5 |
| Vendor site | cnc.js.org |
This link goes to the vendor site. EngiFree hosts no installers and distributes no cracked versions.
Last verified: 2026-10-11
