Top Open Source CRM Systems Tools in 2026
A curated collection of the 16 best free and open-source CRM Systems tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.
Open Mercato
AI-native CRM/ERP framework with 80% done
Stars1,686Last commit12d agoLicenseMITEspoCRM
Open-source CRM software for managing customers, companies, projects and opportunities. Intuitive interface with cloud and self-hosted options available.
Stars3,299Last commit10d agoLicenseAGPL-3.0ACI.dev
Outcome Automation as a Service for professional and financial services firms
Stars4,885Last commit3mo agoLicenseApache-2.0
Warpdrive
Open-source self-hosted CRM alternative to Pipedrive
Stars73Last commit11d agoLicenseMITTwenty
Open source CRM for modern teams
Stars55,656Last commit10d agoLicenseOpen SourceCRM
Agentic CRM that automates pipeline management
Stars8,982Last commit16d agoLicenseMIT
Reqcore
ATS that reads every applicant and ranks them
Stars—Last commit17d agoLicenseOpen Source
Relaticle
Open-source AI-powered CRM with MCP tools
Stars1,554Last commit11d agoLicenseAGPL-3.0Odoo
Open source ERP and CRM suite
Stars53,981Last commit10d agoLicenseOpen Source
Atomic CRM
Open-source CRM toolkit for personalized solutions
Stars1,207Last commit1mo agoLicenseMIT
Macro CRM
CRM that builds itself from your email
Stars4,064Last commit11d agoLicenseAGPL-3.0
Krayin
Open source CRM built on Laravel
Stars23,733Last commit12d agoLicenseMITEver Gauzy
All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations
Stars4,349Last commit10d agoLicenseAGPL-3.0Frappe CRM
A flexible and customizable CRM platform for managing contacts, deals, and customer relationships without the complexity or user-based pricing of traditional solutions.
Stars3,403Last commit10d agoLicenseAGPL-3.0
Erxes
AI-native experience operating system for modern businesses
Stars4,075Last commit10d agoLicenseOpen Source
