Mainsail vs Spoolman

Both are self-hosted manufacturing projects. This page compares how well each one is actually maintained — the part you cannot see from a feature list.

Spoolman scores 76 against Mainsail's 71, putting it slightly ahead on the strength of a higher commit volume. That measures project health, not feature fit — Mainsail may still be the right choice if it does what you need.

	Mainsail	Spoolman
Health score	71/100	76/100
Commits (11 mo)	294	555
Commits (last 3 mo)	124	486
Stars	2.2k	2.9k
Latest release	27 Aug 2026	25 Sept 2026
Licence	GPL-3.0	MIT
Built with	Docker, Python	Docker, Python
Typical RAM	1 GB	1 GB

Mainsail

Modern and responsive user interface for the Klipper 3D printer firmware. Control and monitor your printer from everywhere, from any device.

71/100

Healthy

Actively maintained with regular releases.

Maintenance 21/40

Releases 25/25

Community 10/20

Momentum 15/15

Commit activity more than 52% of tracked projects; popularity more than 52%. How this is calculated.

Commits, last 11 months

Spoolman

Keep track of your inventory of 3D-printer filament spools.

76/100

Healthy

Actively maintained with regular releases.

Maintenance 27/40

Releases 25/25

Community 11/20

Momentum 13/15

Commit activity more than 66% of tracked projects; popularity more than 56%. How this is calculated.

Commits, last 11 months

How to read this

Everything above is measured, not opinion: commit counts and release dates come from the public repositories, and the health score ranks each project against all 1352 projects we track. Read the full method.

What this comparison deliberately does not do is tell you which has the better feature set. Maintenance health tells you which project will still be receiving security fixes in two years. Decide that first, then compare features on the projects that survive the filter.

See every option in this category: self-hosted manufacturing.