Best Open Source Alternatives to Square POS

Compare the best free and open-source alternatives to Square POS — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 3 alternatives

Square POS

Proprietary SaaS

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Platformsmobile, web

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Square POS alternatives compared

Open-source alternatives to Square POS, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Odoo POS	53,412	LGPL-3.0	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit
ERPNext POS	37,494	GPL-3.0	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit
WooCommerce POS	0	GPL-3.0	LinuxmacOSWindowsWeb	Yes	—	Visit