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 November 2026 · 3 alternatives

Microsoft Dynamics 365

Proprietary SaaS

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Platformsweb, desktop, mobile

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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	55,501	LGPL-3.0	LinuxmacOSWindowsDocker	Yes	Nov 2026	Visit
ERPNext	40,892	GPL-3.0	LinuxmacOSWindowsDocker	Yes	Nov 2026	Visit
Dolibarr	7,820	GPL-3.0	LinuxmacOSWindowsDocker	Yes	Nov 2026	Visit

Top open-source Microsoft Dynamics 365 alternatives

Odoo Community55,501LGPL-3.0

Odoo Community is an open-source ERP replacing Odoo Enterprise and NetSuite with self-hosted inventory, CRM, sales, and modular business apps.

LinuxmacOSWindowsDockerWeb

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

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ERPNext40,892GPL-3.0

ERPNext is an open-source ERP alternative to Odoo and NetSuite that unifies accounting, inventory, and payroll with auto-generated REST APIs and webhooks.

LinuxmacOSWindowsDockerWeb

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

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Dolibarr7,820GPL-3.0

Dolibarr is a lightweight open-source ERP and CRM alternative to Odoo and NetSuite, delivering modular invoicing and inventory with low server overhead.

LinuxmacOSWindowsDockerWeb

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

Visit Details

Best Open Source Alternatives to Microsoft Dynamics 365

Microsoft Dynamics 365

Microsoft Dynamics 365 alternatives compared

Top open-source Microsoft Dynamics 365 alternatives

The modern standard for Protobuf workflows

Mentoring for backend developers. Consulting for startups.