Open-source alternatives to Microsoft Dynamics 365 Sales

Microsoft Dynamics 365 Sales by Microsoft in the Sales & CRM category. These are the open alternatives we recommend looking at.

Twenty

Modern CRM with a flexible data model, pipeline and email sync.

AGPL-3.0Network copyleft (AGPL)Open corenot verified

SaaS: Yes, with conditionsClosed product: No

GitHub stars: 57.8k
Deployment: Docker
Login/SSO: OIDC/SAML (Enterprise)

Odoo Community

Modular business suite: accounting, invoicing, CRM, HR, inventory and more.

LGPL-3.0Weak copyleftOpen corenot verified

SaaS: YesClosed product: Yes, with conditions

GitHub stars: 54.8k
Deployment: Docker, Helm
Login/SSO: OAuth built in; SAML via OCA auth_saml

Krayin CRM

Laravel-based CRM for leads, contacts and quotes.

MITPermissivenot verified

SaaS: YesClosed product: Yes

GitHub stars: 24.0k
Deployment: Docker

Dolibarr

ERP and CRM for small and mid-sized companies with invoicing, quotes and inventory.

GPL-3.0Strong copyleftnot verified

SaaS: YesClosed product: No

GitHub stars: 7.7k
Deployment: Docker
Login/SSO: LDAP, OIDC module

SuiteCRM

Comprehensive Salesforce-style CRM with campaigns, cases and reports.

AGPL-3.0Network copyleft (AGPL)

SaaS: Yes, with conditionsClosed product: No

GitHub stars: 5.8k
Deployment: Docker
Login/SSO: SAML, LDAP

Frappe CRM

Simple, modern CRM for leads and deals, built on Frappe.

AGPL-3.0Network copyleft (AGPL)

SaaS: Yes, with conditionsClosed product: No

GitHub stars: 3.7k
Deployment: Docker
Login/SSO: OAuth/OIDC

EspoCRM

Stable, lightweight CRM with contacts, deals, cases and email.

AGPL-3.0Network copyleft (AGPL)

SaaS: Yes, with conditionsClosed product: No

GitHub stars: 3.4k
Deployment: Docker
Login/SSO: OIDC built in, LDAP

Corteza

Low-code platform for building business apps such as CRM and case management.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars: 2.2k
Deployment: Docker
Login/SSO: OIDC, SAML

Relaticle

CRM built on Laravel and Filament with built-in AI-agent support via MCP and a REST API. Young project.

AGPL-3.0Network copyleft (AGPL)Young projectnot verified

SaaS: Yes, with conditionsClosed product: No

GitHub stars: 1.7k
Deployment: Docker

Atomic CRM

CRM built with React and Supabase, designed to be customised to your needs.

MITPermissive

SaaS: YesClosed product: Yes

GitHub stars: 1.3k
Deployment: Library

AureusERP

ERP built on Laravel with modules for inventory, purchasing, invoicing and HR, among others.

MITPermissive

SaaS: YesClosed product: Yes

GitHub stars: 12k
Deployment: Server

Apache OFBiz

Business system from Apache with ERP, CRM, e-commerce and supply chain, built in Java.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars: 1.1k
Deployment: Server

iDempiere

Business suite (ERP) covering finance, purchasing, inventory, manufacturing, CRM and point of sale.

GPL-2.0Strong copyleft

SaaS: YesClosed product: No

GitHub stars: 665
Deployment: Server

This is guidance, not legal advice (inte juridisk rådgivning). Check with a lawyer before deciding.

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