CNCjs
Web interface for CNC milling controllers running Grbl, Smoothieware, or TinyG.
CNCjs vs Octoprint
Two self-hosted Manufacturing apps, compared on the facts we track: GitHub popularity and activity, license, language, Docker images and a rough hosting estimate.
Side by side
| CNCjs | Octoprint | |
|---|---|---|
| Description | Web interface for CNC milling controllers running Grbl, Smoothieware, or TinyG. | Snappy web interface for controlling consumer 3D printers. |
| GitHub stars | 2,667 | 9,190 |
| Forks | – | – |
| Open issues | – | – |
| Commits (12 months) | 51 | 687 |
| Last activity | 2026-11-09 | 2026-11-10 |
| Latest release | v1.11.5 (2026-09-13) | 2.0.0rc7 (2026-10-20) |
| Maintenance health | Active | Active |
| License | MIT | AGPL-3.0 |
| Language / platform | Nodejs | Docker, Python |
| Docker Hub image | cncjs/cncjs | – |
| Docker pulls | 24k | – |
| Est. server size | ~1 GB, 1 vCPU | ~1 GB, 1 vCPU |
| Est. hosting from | $5/mo | $5/mo |
| Categories | Manufacturing | Manufacturing |
| Links | Website · Source | Website · Source |
What the numbers say
- Octoprint is more popular on GitHub: 9.2k stars vs 2.7k for CNCjs.
- Octoprint had more commits in the last 12 months (687 vs 51).
- Octoprint published a release more recently (2.0.0rc7 on 2026-10-20; CNCjs's latest is v1.11.5 on 2026-09-13).
- CNCjs is licensed under MIT, Octoprint under AGPL-3.0. CNCjs's license is permissive; Octoprint's is copyleft (changes you distribute must stay open).
- CNCjs is written in Nodejs; Octoprint in Python.
- Deployment options listed upstream: CNCjs: none listed; Octoprint: Docker.
- Only CNCjs has a Docker Hub image that we detected (cncjs/cncjs).
Summary: CNCjs leads on Docker Hub availability; Octoprint leads on GitHub popularity and commit activity. The right choice depends on the features you need — read both project descriptions and docs.
This summary is generated from GitHub, Docker Hub and awesome-selfhosted data as of 2026-11-15. It does not rate features or quality.
Get the Docker images
CNCjs
docker pull cncjs/cncjsImage on Docker Hub. Ports, volumes and environment variables differ per app; follow the official docs.
Frequently asked questions
Is CNCjs or Octoprint more popular?
Octoprint has more GitHub stars (9,190 vs 2,667 for CNCjs, as of 2026-11-15). Stars measure interest, not quality.
Which is more actively maintained, CNCjs or Octoprint?
Octoprint had more commits over the last 12 months (687 vs 51). The last recorded activity was 2026-11-09 for CNCjs and 2026-11-10 for Octoprint. Releases in the past year: CNCjs 10+, Octoprint 10+. Our health labels: CNCjs is “Active”, Octoprint is “Active”.
What licenses do CNCjs and Octoprint use?
CNCjs: MIT. Octoprint: AGPL-3.0. CNCjs's license is permissive; Octoprint's is copyleft (changes you distribute must stay open).
Can I run CNCjs and Octoprint with Docker?
CNCjs has a Docker Hub image (cncjs/cncjs). We did not find one for Octoprint, though the upstream listing mentions Docker as a deployment option.
Read more
Octoprint
Snappy web interface for controlling consumer 3D printers.
Browse all self-hosted Manufacturing apps.