Monica is an open‑source personal relationship manager that helps you keep track of contacts, interactions, and reminders. Looking for other open‑source CRM solutions? Below are 20 alternatives that cater to personal, small‑business, or enterprise needs.
Get targeted exposure with custom position pinning and highlighted placement.
A fully‑featured fork of SugarCRM offering sales, marketing, and support modules with extensive customization and a large community.
Lightweight, entity‑centric CRM that lets you define custom entities, workflows, and dashboards. Ideal for SMBs and developers.
Feature‑rich CRM/ERP platform with sales automation, project management, and a modular architecture. Fully GPL‑licensed.
Part of the Odoo suite; the community edition provides lead management, pipeline visualization, and integration with other Odoo apps.
Non‑profit focused CRM that handles contacts, contributions, event registration, and mass mailings. Integrates with Drupal, Joomla, and WordPress.
All‑in‑one ERP/CRM solution with contact management, sales pipeline, invoicing, and project tracking. Easy to install and use.
Open‑source edition of Vtiger offering lead management, email integration, and ticketing. Suitable for small to mid‑size teams.
Highly customizable CRM with marketing automation, sales pipeline, and workflow builder. Built on PHP/MySQL stack.
Gamified open‑source CRM that adds points, badges, and leaderboards to boost user adoption while delivering core sales features.
A lightweight Ruby on Rails CRM focused on leads, contacts, and opportunities. Ideal for developers who want a minimal base to extend.
Enterprise‑grade CRM written in Java, offering account management, activity tracking, and a robust security model.
Open‑source ERP with a built‑in CRM module for lead capture, pipeline management, and customer communication.
Low‑code, API‑first CRM that lets you build custom objects, workflows, and UI components without coding.
Open‑source marketing automation platform with contact management, lead scoring, and campaign tracking—often used as a lightweight CRM.
B2B‑focused CRM built on Symfony, offering advanced segmentation, multi‑channel marketing, and integration with OroCommerce.
Groupware suite with CRM, calendar, email, and project management. Emphasizes privacy and self‑hosting.
Modular open‑source ERP/CRM platform with a modern UI, workflow engine, and REST API for rapid customization.
Standalone CRM version of Dolibarr focused solely on contact, lead, and opportunity management, without the full ERP stack.
Free community edition of EspoCRM with core sales, marketing, and support features; extensible via custom extensions.
Community‑driven fork of Vtiger offering enhanced security, performance, and a rich set of modules for CRM and project management.