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Mainsail vs Duet Web Control: catalog facts
Mainsail	Duet Web Control
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Best for: Control a Klipper printer through a browser dashboard	Best for: Controlling a Duet-based 3D printer from a browser
Free Free and open source. Hosting, hardware and any external services are separate.	Free Free and open source.
Self-hosted, Web	Web, Self-hosted
Shows printer status and job controls Provides configuration and print-file management	No separate host computer needed Responsive layout works on phones and desktops All 3 strengths for Duet Web Control No separate host computer needed Responsive layout works on phones and desktops Maintained by the Duet3D hardware maker
Requires Klipper and a compatible Moonraker installation.	Only works with RepRapFirmware on Duet electronics
Self-hosted, Web application	Self-hosted
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Mainsail docs.mainsail.xyz github.com/mainsail-crew/mainsail Catalog checked September 22, 2026	Official website Full listing and sources Sources for Duet Web Control github.com/Duet3D/DuetWebControl Catalog checked September 23, 2026

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

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