Best ERP-Integrated CRM (2026)

Odoo Community is a free, LGPL-licensed open-source ERP suite whose CRM app delivers visual pipeline management, lead and opportunity tracking, email integration, and quotation creation — all deployable on your own servers at no license cost. It is best for teams that want a tightly integrated CRM-to-invoicing workflow on self-hosted infrastructure.

ERPNext is a free, open-source (GPL-3) full ERP suite built on the Frappe Framework, with a native CRM module covering lead and opportunity management, customer profiles, activity tracking, and quotation-to-order workflow. It is self-hostable via Docker or Frappe Cloud and targets SMBs to mid-market companies across manufacturing, distribution, services and nonprofits.

Dolibarr is a modular, PHP-based open-source ERP and CRM suite that covers prospects, contacts, opportunities, proposals, sales orders, contracts and helpdesk in a single self-hosted web application. It is particularly popular with small businesses, freelancers and associations that need a lightweight all-in-one system without licensing fees.

Axelor is a French open-source ERP/CRM suite built on a low-code platform, combining contact and lead management, opportunity tracking, marketing campaigns and support ticketing with 30+ business applications. The Community edition is free to self-host; Pro and Enterprise tiers add commercial support and advanced modules.

WP ERP is a self-hosted WordPress plugin from weDevs that combines CRM, HR management, and double-entry accounting modules in one system with WooCommerce integration. It suits small businesses that want lightweight ERP plus CRM inside an existing WordPress site at low cost.

IDURAR is a free, open-source ERP and CRM platform built on the MERN stack (Node.js, Express, MongoDB, React) with Ant Design, offering customer management, lead tracking, quoting, invoicing, payment management, and accounting in a single self-hosted web application. It targets businesses seeking a self-hosted Salesforce alternative with optional lifetime commercial licenses for enterprise features.

Tryton is a modular, Python/PostgreSQL-based open-source ERP released under GPL-3 by the Tryton Foundation, with a CRM module for lead and opportunity tracking alongside unusually deep financial accounting and supply-chain modules. It targets medium-to-large organisations that prioritise long-term stability and developer extensibility over SaaS convenience.

Flectra is an open-source ERP and CRM suite forked from Odoo, built on Python and PostgreSQL, and deployable on your own infrastructure. It includes a CRM module for sales pipeline and contact management, alongside accounting, inventory, HR and e-commerce modules, with a one-time on-premise licence available for teams that want perpetual self-hosted use.

iDempiere is a community-driven, open-source Tier II ERP/CRM/SCM system built on Java, OSGi, ZK and PostgreSQL. Its CRM module covers leads, activities and opportunities, and the platform is known for its Active Data Dictionary, plug-in architecture and strong support for multi-org, multi-currency scenarios at enterprise scale.

metasfresh is a free, open-source ERP system developed by metas GmbH (Bonn, Germany) on a Java/ReactJS/REST-API stack, with a CRM module covering prospect management, phone-call scheduling, request/opportunity tracking and a sales pipeline. It is purpose-built for wholesale, distribution and food-industry SMEs needing advanced supply-chain and accounting alongside basic CRM.