Top 30 Open-source CRM Software

Curated list of the top 30 open-source customer relationship management (CRM) software for businesses and teams seeking customizable, self-hosted solutions.

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#2 Twenty

Modern open-source CRM built for the AI era, featuring customizable objects, workflows, and native AI agent integration via MCP.

Enterprise-grade open-source CRM forked from SugarCRM, offering comprehensive sales, marketing, and customer service modules with high customization.

#4 EspoCRM

User-friendly open-source CRM with clean interface, focusing on simplicity and core CRM functionalities for small to medium businesses.

Integrated CRM module within Odoo's comprehensive business suite, suitable for managing sales pipelines and operations alongside other business apps.

Highly customizable open-source CRM with advanced modules, strong security features, analytics, and complex permission controls for large organizations.

All-in-one open-source CRM combining sales, marketing, and support tools with automation workflows and AI-driven analytics.

Open-source ERP and CRM suite designed for small businesses and freelancers, offering CRM, invoicing, inventory, and project management.

#9 CiviCRM

Open-source CRM tailored for non-profits, associations, and advocacy groups, with donor management, event planning, and membership tracking.

Privacy-first open-source CRM built on a low-code platform, offering high customization, workflow tools, and GDPR compliance.

#11 X2CRM

Process-focused open-source CRM with lifecycle mapping, workflow automation, and contact management for teams needing detailed process tracking.

Ruby on Rails based open-source CRM platform with lightweight architecture, customizable features, and a straightforward user interface.

Fully-featured open-source CRM built on the Frappe framework, offering modern UI, extensibility, and integration with Frappe apps.

Open-source CRM designed to help track daily workflow, contacts, and activities with a simple, intuitive interface for personal or team use.

#15 OroCRM

Open-source CRM application focusing on commerce and marketing automation, built for flexibility and complex B2B relationship management.

#16 iDempiere

Community-powered open-source business suite ERP/CRM with manufacturing, supply chain, POS, and CRM features for comprehensive business management.

#17 Flectra

Open-source CRM and business management software, a fork of Odoo with enhanced customization and modular architecture.

#18 Grow CRM

Self-hosted open-source CRM with built-in tools for proposals, contracts, estimates, and support tickets, focusing on privacy and customization.

#19 Flatlogic

AI-powered application generator for creating custom CRM platforms with full control over data models, workflows, and UI.

#20 Zurmo

Gamified open-source CRM with points and rewards system to motivate sales teams, improve engagement, and track performance.

#21 Copper

Open-source CRM deeply integrated with Google Workspace, focusing on seamless G Suite ecosystem connection for Gmail and Google Calendar users.

#22 Mautic

Open-source marketing automation platform that can function as a CRM for lead nurturing, email campaigns, and customer engagement tracking.

Open-source edition of SugarCRM with core CRM features, sales forecasting, reporting, and a strong ecosystem for customization.

#24 ERPNext

Open-source ERP system with integrated CRM module, suitable for managing customer relationships within broader business operations and supply chain.

#25 Akaunting

Open-source accounting software with CRM features, designed for small businesses and freelancers to manage finances and customer data.

#26 ChurchCRM

Open-source CRM designed specifically for churches and religious organizations, managing members, donations, events, and volunteer tracking.

Open-source CRM and community platform for building customer communities, managing relationships, and fostering engagement.

#28 Monica

Personal relationship management open-source tool for individuals and small teams to manage contacts, interactions, and important events.

#29 Huly

Modular open-source CRM with plugin support and customizable UI, targeting medium-sized businesses needing flexible feature sets.

#30 NocoBase

AI-driven open-source no-code/low-code platform for building custom CRM and business applications with deep customization and AI integration.

Open-source version of Zurmo CRM with gamification features to boost sales team productivity and engagement through rewards and badges.