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MainsailOS vs OctoPi: catalog facts
MainsailOS	OctoPi
No screenshots available	No screenshots available
Best for: Setting up a new Klipper printer on a Raspberry Pi	Best for: Setting up browser-based control of a 3D printer on a Raspberry Pi
Free Free and open source.	Free Free and open source.
Linux	Linux, Self-hosted
Klipper stack ready after flashing Includes the Mainsail web interface All 3 strengths for MainsailOS Klipper stack ready after flashing Includes the Mainsail web interface Maintained by the Mainsail team	OctoPrint preinstalled and ready after flashing Webcam streaming and timelapse support included All 3 strengths for OctoPi OctoPrint preinstalled and ready after flashing Webcam streaming and timelapse support included Build scripts published for custom images
Replaces the whole operating system on the board Aimed at single-board computers like the Raspberry Pi	Needs a Raspberry Pi or supported board next to the printer Le Potato support is still in beta
Operating system	Operating system
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	No account needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for MainsailOS github.com/mainsail-crew/MainsailOS Catalog checked September 23, 2026	Official website Full listing and sources Sources for OctoPi github.com/guysoft/OctoPi Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.