Mainsail is a lightweight and responsive web interface for managing 3D printers running Klipper firmware.
It provides an intuitive browser-based environment for controlling printers, monitoring jobs, editing configuration files, and managing G-code files through the Moonraker API.
This is free and open source software.
Key Features
- Responsive interface optimized for desktops, tablets, and mobile devices.
- Manage multiple 3D printers from a single interface.
- Upload, rename, delete, and organize G-code and configuration files.
- Edit G-code and configuration files with syntax highlighting.
- Review previous prints and their completion status.
- View printer usage and job success and failure statistics.
- Queue multiple print jobs and add jobs directly from a slicer.
- Create temperature presets for convenient preheating.
- Visualize the printer bed using an interactive 3D mesh graph.
- Inspect prints and follow their progress with a 3D G-code viewer.
- Monitor prints using multiple webcams.
- Automatically record print timelapses with moonraker-timelapse.
- Control relays, TP-Link devices, Tasmota devices, and other power equipment.
- Organize and manage Klipper macros.
- Customize the dashboard layout, logos, backgrounds, and CSS.
- Display additional sensors on temperature graphs.
- Use the interface in multiple languages.
Website: https://github.com/mainsail-crew/mainsail
Support:
Developer: Mainsail Crew
License: GNU General Public License v3.0

Mainsail is written in TypeScript. Learn TypeScript with our recommended free books and free tutorials.
Related Software
| 3D Printer Tools | |
|---|---|
| Orca Slicer | Forked from BambuStudio, itself a fork of PrusaSlicer, itself a fork of Slic3r |
| PrusaSlicer | Takes 3D models (STL, OBJ, AMF) and converts them into G-code instruction |
| Cura | State-of-the-art slicer app to prepare your 3D models for your 3D printer |
| SuperSlicer | G-code generator for 3D printers |
| Slic3r | Toolpath generator for 3D printers |
| BambuStudio | Bills itself as a cutting-edge, feature-rich slicing program |
| Printrun | Suite of hosts for 3D printers and other CNC machines |
| MatterControl | Track, preview, and print your 3D parts |
| mslicer | Currently only ELEGOO .goo files can be generated |
| OctoPrint | Snappy web interface for controlling consumer 3D printers |
| Creality Print | 3D slicer for Creality printers |
| ElegooSlicer | Slicer compatible with most FDM printers |
| preFlight | Building on the Slic3r legacy as a spiritual successor to PrusaSlicer |
| QIDIStudio | Professional 3D printer slicing software based on BambuStudio |
| Mainsail | Web interface for managing 3D printers |
| Fluidd | Web interface for managing Klipper-powered 3D printers |
Read more in the software roundup.
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