Top pick · highest health
Octoprint
Snappy web interface for controlling consumer 3D printers.
DockerPython
Manufacturing
Open source alternatives to Octoprint Cloud
We track 5 open-source Octoprint Cloud alternatives, of which 4 currently score 70 or above on Repoly's GitHub health scale and 4 ship a Docker image. Octoprint leads on health at 96/100 with 140 commits in the last 90 days; across all 5 projects you are choosing between AGPL-3.0, GPL-3.0, MIT.
updated Oct 2026 5 alternatives best health 96 ★ 19k combined 767 commits / 90d 4 with Docker
Top picks to replace Octoprint Cloud
Showing 5 of 5 tools
All 5 Octoprint Cloud alternatives, ranked by health
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Spoolman
Keep track of your inventory of 3D-printer filament spools.
DockerPython -
Mainsail
Modern and responsive user interface for the Klipper 3D printer firmware. Control and monitor your printer from everywhere, from any device.
DockerPython -
Fluidd
Lightweight & responsive user interface for Klipper, the 3D printer firmware.
DockerNodejs -
CNCjs
Web interface for CNC milling controllers running Grbl, Smoothieware, or TinyG.
Nodejs
Octoprint Cloud alternatives compared
Octoprint edges Spoolman 96 to 94, and most of the difference is stars: 9.2k stars against 3k stars. Spoolman is the busier codebase, though, with 451 commits in 90 days to 140.
The most recent release is Fluidd v1.37.7, published 14 days ago. None of the measured options scores under 40. By stack, Python (3) and Nodejs (2) are the most common. Spoolman and CNCjs are permissively licensed; Octoprint, Mainsail and Fluidd are copyleft.
| Tool | Health | Stars | Licence | Last commit | Docker |
|---|---|---|---|---|---|
| Octoprint Steady at 96 since 11 Sep, no release for 4 months | 96 | 9.2k | AGPL-3.0 | 3 days ago | Yes |
| Spoolman Steady at 94 since 11 Sep | 94 | 3k | MIT | yesterday | Yes |
| Mainsail Steady at 93 since 11 Sep | 93 | 2.2k | GPL-3.0 | today | Yes |
| Fluidd Steady at 93 since 11 Sep | 93 | 1.8k | GPL-3.0 | 5 days ago | Yes |
| CNCjs Up 8 points since 11 Sep | 66 | 2.7k | MIT | 1 month ago | No |
Octoprint Cloud alternatives: common questions
What is the most maintained open source alternative to Octoprint Cloud?
Octoprint scores highest at 96/100, with 140 commits in the last 90 days, 9.2k stars on GitHub and its latest release (1.11.8) published 4 months ago. Spoolman has the most raw commit activity at 451 commits in 90 days.
Which Octoprint Cloud alternatives use a permissive licence?
2 of 5 are permissively licensed (MIT, Apache, BSD or similar): Spoolman (MIT), CNCjs (MIT). 3 use copyleft licences such as GPL or AGPL, which require you to publish changes if you distribute a modified version.
Which Octoprint Cloud alternatives run in Docker?
4 of 5 publish a Docker image or Compose file: Octoprint, Spoolman, Mainsail, Fluidd. Docker support contributes 10 of the 100 available health points, because it is the clearest signal that self-hosting is a supported path rather than an afterthought.
Is Octoprint or Spoolman the better Octoprint Cloud alternative?
On measured health Octoprint leads, 96 to 94. Octoprint has 140 commits in 90 days, 9.2k stars and 1.11.8 from 4 months ago; Spoolman has 451 commits in 90 days, 3k stars and v0.27.0 from 1 month ago. Pick Spoolman if licensing matters: it is MIT, while Octoprint is AGPL-3.0.
Are the Octoprint Cloud alternatives still maintained?
4 of the 5 measured options score 70 or above. Every measured option had commits in the last 90 days. None scores under 40.
What languages are the Octoprint Cloud alternatives written in?
Python: Octoprint, Spoolman and Mainsail. Nodejs: Fluidd and CNCjs. The stack matters if you plan to extend or patch the tool yourself.
