Mainsail - The 3D Printer Interface for Klipper
Find guides, setup instructions, and resources to customize and optimize your Mainsail 3D printer interface.
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Mainsail is a lightweight, responsive web interface for managing and controlling 3D printers powered by Klipper firmware, designed for 3D printing hobbyists, makers, and multi-printer farm operators.
🚀 Overview
Mainsail offers a sleek, intuitive web dashboard to control Klipper-based 3D printers, enabling real-time monitoring, file management, and customization from any device with a browser.
What problem does this project solve? Klipper is a high-performance firmware for 3D printers, but it lacks a built-in user-friendly interface—Mainsail provides a lightweight, responsive UI to make advanced printer control accessible without complexity.
Who is it built for? Individual 3D printing enthusiasts, printer farm operators managing multiple machines, and vendors pre-installing on their printers.
Why did you build it? To enhance Klipper's usability with a consistent design philosophy, focusing on responsiveness, intuitiveness, and essential features for a better printing workflow.
✨ Key Features
- Fully responsive interface for desktop, tablet, and mobile devices (crucial for monitoring prints anywhere)
- Printer farm support for controlling multiple printers from a single dashboard
- Integrated file manager with upload, rename, delete, and in-browser editor with syntax highlighting
- Live monitoring of temperatures, print progress, history, and statistics, plus 3D G-code viewer and bed mesh visualization
- Webcam and multi-cam support, timelapse via moonraker-timelapse, and power device integration (relays, smart plugs)
- Optional: Experimental object exclusion, customizable themes, macros with prompts, and slicer job queue
🛠 Tech Stack
- Frontend: Vue.js, TypeScript, CSS, JavaScript, HTML
- Backend: Moonraker API (handles Klipper communication)
- Database: N/A (stateless, uses Moonraker)
- Auth: Moonraker-based (typically trusted local networks)
- Hosting: Self-hosted via Docker, Raspberry Pi images (MainsailOS)
👥 Who Is This For?
This project is useful for:
- 3D printing hobbyists running Klipper who want an easy-to-use web UI
- Teams looking for multi-printer farm management and monitoring
- Indie makers building custom Klipper setups or vendors shipping printers
📸 Screenshots / Demo
- Live demo: https://my.mainsail.xyz/
- GitHub: https://github.com/mainsail-crew/mainsail
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Yes / Open Source (Free to use, with optional support via Patreon or GitHub Sponsors.)
Is the source code available?
Yes — https://github.com/mainsail-crew/mainsail
Can I contribute?
Yes—submit issues and pull requests on GitHub, join Discord discussions at https://discord.gg/mainsail, or help with good-first issues labeled for newcomers.
📬 Contact & Links
- Website: https://docs.mainsail.xyz/
- GitHub: https://github.com/mainsail-crew/mainsail
- Twitter/X: https://x.com/meteyou
- Discord: https://discord.gg/mainsail
Built with ❤️ and kept warm on WarmIndex.
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