Concursive is an open‑source CRM platform focused on lead management, sales pipelines, and marketing automation. Below is a curated list of 20 open‑source CRM solutions that can serve as alternatives, each offering its own strengths in customization, integration, and community support.
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A fully featured fork of SugarCRM Community Edition with extensive modules for sales, marketing, and support, plus a vibrant plugin ecosystem.
Combines sales automation, customer support, and inventory management; offers both on‑premise and cloud‑hosted options.
Lightweight, API‑first CRM that supports custom entities, workflow automation, and a modern UI built with Vue.js.
Feature‑rich CRM derived from Vtiger, emphasizing security, modularity, and GDPR compliance.
Enterprise‑grade CRM focused on B2B commerce, with robust data analytics, segmentation, and integration with OroCommerce.
Non‑profit oriented CRM that manages contacts, fundraising, events, and mass mailings; integrates with Drupal, Joomla, and WordPress.
All‑in‑one ERP/CRM suite for small and medium businesses, offering sales pipeline, invoicing, and project management modules.
Gamified open‑source CRM that adds points, badges, and leaderboards to encourage user adoption.
Ruby on Rails‑based CRM focused on simplicity, with lead management, contact tracking, and email integration.
Highly customizable CRM with a visual workflow builder, marketing automation, and a built‑in reporting engine.
Open‑source CRM built on the Crust Platform, offering drag‑and‑drop UI, AI‑assisted insights, and seamless integration with other business apps.
Java‑based CRM with a modular architecture, supporting multi‑tenant deployments, extensive REST APIs, and strong security features.
ERP suite with a native CRM module covering leads, opportunities, and customer communications; built on Frappe framework.
Part of the Odoo open‑source ERP; provides pipeline management, activity scheduling, and integration with sales, marketing, and helpdesk apps.
Lightweight CRM focused on subscription businesses, offering lead capture, account management, and revenue analytics.
Original open‑source version of Vtiger, still maintained by community forks; includes sales, support, and marketing modules.
Open‑source marketing automation platform with built‑in CRM capabilities such as lead scoring, segmentation, and email tracking.
Node.js‑based CRM focused on e‑commerce and subscription billing, offering contact management and order tracking.
Free self‑hosted edition of Bitrix24 providing CRM, project management, and collaboration tools for up to 12 users.
Community‑maintained wrapper that enables Zoho CRM features on-premise via open‑source connectors and API sync.