Mainsail vs CNCjs
A side-by-side comparison of Mainsail and CNCjs — pricing, license, deployment, and where each tool wins.
Mainsail
docs.mainsail.xyz
Modern and responsive user interface for the Klipper 3D printer firmware. Control and monitor your printer from everywhere, from any device.
CNCjs
cnc.js.org
Web interface for CNC milling controllers running Grbl, Smoothieware, or TinyG.
| Feature | Mainsail | CNCjs |
|---|---|---|
| Pricing | Free | Free |
| Model | Open-source | Open-source |
| License | CC-BY-SA-3.0 | CC-BY-SA-3.0 |
| Deployment | Self-hosted | Self-hosted |
| Category | Manufacturing | Manufacturing |
| Self-hosted | ✓Yes | ✓Yes |
| Free tier | ✓Yes | ✓Yes |
Pick Mainsail if…
- ✓You prefer Mainsail's feature set or ecosystem fit.
Pick CNCjs if…
- ✓You prefer CNCjs's feature set or ecosystem fit.