Best Open Source Alternatives to Microsoft Dynamics 365

Compare the best free and open-source alternatives to Microsoft Dynamics 365 — 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

Microsoft Dynamics 365

Proprietary SaaS

PricingSubscription

Platformsweb, desktop, mobile

WebsiteVisit site

Microsoft Dynamics 365 alternatives compared

Open-source alternatives to Microsoft Dynamics 365, 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

Top open-source Microsoft Dynamics 365 alternatives

Odoo Community53,415LGPL-3.0

Free, open-source community edition of Odoo, offering CRM, ERP, and inventory.

LinuxmacOSWindowsDockerWeb

vs Microsoft Dynamics 365: a free, open-source option you fully control, licensed LGPL-3.0.

Visit Details

ERPNext37,494GPL-3.0

Free and open-source integrated Enterprise Resource Planning software built on Frappe framework.

LinuxmacOSWindowsDockerWeb

vs Microsoft Dynamics 365: a free, open-source option you fully control, licensed GPL-3.0.

Visit Details

Dolibarr7,466GPL-3.0

Open-source ERP and CRM web software suite for small, medium companies and foundations.

LinuxmacOSWindowsDockerWeb

vs Microsoft Dynamics 365: a free, open-source option you fully control, licensed GPL-3.0.

Visit Details