Best Open Source Alternatives to Sage X3

Compare the best free and open-source alternatives to Sage X3 — 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

Sage X3

Proprietary SaaS

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Platformsweb, desktop

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Sage X3 alternatives compared

Open-source alternatives to Sage X3, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Odoo Community	53,415	LGPL-3.0	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit
ERPNext	37,494	GPL-3.0	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit
Dolibarr	7,466	GPL-3.0	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit