Mainsail
Mainsail: A polished self-hosted control center for Klipper printers, not a slicer or model repair tool. Ranked #19 of 35 in 3D Printing Software by our editors (6.8/10); pricing: Free plan; best for klipper users wanting a polished self-hosted interface.
At a glance
- Editor score6.8 / 10
- PricingFree plan
- Best forKlipper users wanting a polished self-hosted interface
- Free planYes
- Paid fromFree
- Auto supportsNo
- Facts checked25 Sep 2026
Where it wins
- Controls and monitors multiple Klipper printers through one interface
- Combines files, macros, bed meshes, webcams, and print history
- Integrates with Cura, IdeaMaker, OrcaSlicer, and PrusaSlicer
Where it doesn't
- Requires a Klipper and Moonraker-based printer setup
- Does not provide slicing or cloud slicing
- Does not include support generation or model repair
Our verdict on Mainsail
Mainsail is an open-source, self-hosted web interface for managing and controlling 3D printers running Klipper firmware. It connects through Moonraker and is designed for makers, hobbyists, and professionals who want a browser-based way to operate one or more Klipper printers. The interface brings printer control, live status, temperature monitoring, file handling, macros, G-Code viewing, webcams, and print history into one workspace. It is a strong fit for Klipper users who want a focused interface rather than a broader cloud printing service.
Its standout strength is the breadth of printer operations covered in one place. Mainsail supports multi-printer management, real-time printer-state and temperature monitoring, G-Code and configuration-file organization and editing, print history, usage statistics, macro prompts and parameters, Bed Mesh visualization, and webcam or multi-webcam monitoring. Supported power devices can also be controlled through relays and smart devices. Integration with Klipper and Moonraker forms the core ecosystem, while Cura, IdeaMaker, OrcaSlicer, and PrusaSlicer connect the interface to established slicing workflows. Crowsnest and moonraker-timelapse extend the surrounding setup.
Mainsail is intentionally narrow in scope: it manages the printer environment but does not replace a slicer or model-preparation tool. It does not provide slicing, support generation, cloud slicing, or model repair, so users need separate software for those steps. Installation can be handled through MainsailOS, Docker, manual setup, or other documented methods, making it suitable for self-hosted environments with some technical setup involved. Choose Mainsail for polished Klipper control, monitoring, and file management; choose an alternative if you need an all-in-one application for preparing and repairing 3D models.
Your product? Our editors can test Mainsail in depth and publish a review, labelled as paid · from $149/mo →
Mainsail pricing
Mainsail fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Auto supports | No |
| Printer control | Yes |
| Print monitoring | Yes |
| Cloud slicing | No |
| Multi-material tools | No |
| Model repair | No |
| Deployment | Self-hosted, Browser extension |
| Platforms | Web |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 6 integrations: Klipper, Moonraker, Cura, IdeaMaker, OrcaSlicer, PrusaSlicer |
| Pricing | Free plan |
| Website | docs.mainsail.xyz |
| Facts checked | 25 Sep 2026 |
Mainsail integrations
Mainsail lists 6 integrations on its own site.
- Klipper
- Moonraker
- Cura
- IdeaMaker
- OrcaSlicer
- PrusaSlicer
Alternatives to Mainsail
- Bambu StudioA free, open-source desktop suite for slicing, multi-material preparation, and Bambu printer control.9.4
- OrcaSlicerA calibration-focused FDM slicer with broad printer-host integrations.9.0
- Slic3rA mature free slicer with multi-material tools, printer control, and OctoPrint integration.9.0
See all Mainsail alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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