Open QuarterMaster
Modular open-source inventory management system
73 stars 13 forks last commit first released GPL-3.0
Actively maintained
Last commit 23 Aug 2026.

Open QuarterMaster is an open-source inventory management system designed to be simple to use while remaining powerful and extensible. It centers on a Core API for generic inventory functions and a web-based Base Station frontend, with additional functionality provided by optional plugins.
Key Features
- Modular architecture with a central Core API that handles inventory data and location management
- Web-based Base Station frontend for browsing and managing inventory through a user interface
- Plugin system to extend functionality for specific use cases (POS, hardware integrations, workflows)
- Container-friendly design for flexible deployment across single-host, cloud, or small devices such as single-board computers
- Focus on privacy: components do not phone home by default
- Community-driven project with documentation, demo instance, and deployment guides for Debian-based hosts
Use Cases
- Small businesses and makers tracking stock, parts, and supplies across locations
- Labs, IT departments, or makerspaces managing assets, consumables, and equipment
- Integrating inventory with point-of-sale, specialty hardware, or automation via plugins
Limitations and Considerations
- Project is actively under development; documentation and feature completeness may vary between components
- Some integrations and production deployments may require manual configuration and testing
Open QuarterMaster is aimed at organizations that want a flexible, extensible inventory platform they can host and adapt. Its modular core and plugin model make it suitable for a wide range of inventory workflows, from home collections to more complex operational environments.
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