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Part-DB vs Open QuarterMaster: catalog facts
Part-DB	Open QuarterMaster
Free Free and open source under the AGPL-3.0.	Free Free and open source under the GPL-3.0 licence.
Web, Self-hosted	Web, Self-hosted
Barcode labels and webcam scanning KiCad BOM import and project stock checks	Modular design with a core API and optional plugins Aimed at home use as well as business-scale inventory
Needs a web server and database to run Public demo runs development builds	Still in active development, so features are changing Smaller project with a modest community
Self-hosted	Self-hosted
Open source	Open source
License: AGPL-3.0	License: GPL-3.0
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.