_Keep track of your inventory of 3D-printer filament spools._ Spoolman is a self-hosted web service designed to help you efficiently manage your 3D printer filament spools and monitor their usage. It acts as a centralized database that seamlessly integrates with popular 3D printing software like [OctoPrint](https://octoprint.org/) and [Klipper](https://www.klipper3d.org/)/[Moonraker](https://moonraker.readthedocs.io/en/latest/). When connected, it automatically updates spool weights as printing progresses, giving you real-time insights into filament usage. [](https://github.com/Donkie/Spoolman/wiki) [](https://github.com/Donkie/Spoolman/releases) [](https://github.com/sponsors/Donkie) ### Features * **Filament Management**: Keep comprehensive records of filament types, manufacturers, and individual spools. * **API Integration**: The [REST API](https://donkie.github.io/Spoolman/) allows easy integration with other software, facilitating automated workflows and data exchange. * **Real-Time Updates**: Stay informed with live spool updates through Websockets, providing immediate feedback during printing operations. * **Central Filament Database**: A community-supported database of manufacturers and filaments simplify adding new spools to your inventory. Contribute by heading to [SpoolmanDB](https://github.com/Donkie/SpoolmanDB). * **Web-Based Client**: Spoolman includes a built-in web client that lets you manage data effortlessly: * View, create, edit, and delete filament data. * Search, group and filter your inventory by manufacturer, material, location and more. * Add custom fields to tailor information to your specific needs. * Design and print labels with QR codes for easy spool identification and tracking. * Contribute to its translation into 18 languages via [Weblate](https://hosted.weblate.org/projects/spoolman/). * **Database Support**: SQLite, PostgreSQL, MySQL, and CockroachDB. * **Multi-Printer Management**: Handles spool updates from several printers simultaneously. * **Advanced Monitoring**: Integrate with [Prometheus](https://prometheus.io/) for detailed historical analysis of filament usage, helping you track and optimize your printing processes. See the [Wiki](https://github.com/Donkie/Spoolman/wiki/Filament-Usage-History) for instructions on how to set it up. **Spoolman integrates with:** * [Moonraker](https://moonraker.readthedocs.io/en/latest/configuration/#spoolman) and most front-ends (Fluidd, KlipperScreen, Mainsail, ...) * [OctoPrint](https://github.com/mdziekon/octoprint-spoolman) * [OctoEverywhere](https://octoeverywhere.com/spoolman?source=github_spoolman) * [Home Assistant](https://github.com/Disane87/spoolman-homeassistant) * [MCP Server](https://github.com/Disane87/spoolman-mcp) - Manage your filament inventory through AI assistants like Claude using the Model Context Protocol **Web client preview:** 

Dashboard — spools as cards, grouped by location or any other field. Drag one to move it.	Label designer — QR labels built from any spool, filament or vendor field.

## Installation Please see the [Installation page on the Wiki](https://github.com/Donkie/Spoolman/wiki/Installation) for details how to install Spoolman. If the new client misbehaves on your setup, set `SPOOLMAN_LEGACY_CLIENT=TRUE` to go back to the previous one. Both ship in every release and talk to the same API, so your data is untouched either way — but please [report the problem](https://github.com/Donkie/Spoolman/issues) so it can be fixed.