Browse free open source CRM software and projects below. Use the toggles on the left to filter open source CRM software by OS, license, language, programming language, and project status.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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  • 1
    Dolibarr ERP - CRM

    Dolibarr ERP - CRM

    Open source ERP and CRM web software for business

    Dolibarr ERP - CRM is an easy to use ERP and CRM open source software package (run with a web php server or as standalone software) for businesses, foundations or freelancers (prospect, invoicing, inventory, warehouse, order, shipment, POS, members for foundations, bank accounts...). Dolibarr is also available with auto-installers for users with no technical knowledge to install Dolibarr and all its prerequisites (Apache, Mysql, PHP) with just one package. Available platforms for such packages are: Windows, Debian, Ubuntu, Mint, Redhat, Fedora, OpenSuse, Mandriva, Mageia. Other platform can use the generic distribution. This is a modular product, than can be enhanced with tons of external modules (to provide you features not available by default) from https://www.dolistore.com Download Dolibarr ERP - CRM here or sign up for 15-day free trial of the cloud-based application with free updates and support at one of the Cloud providers https://saas.dolibarr.org/
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    Downloads: 2,871 This Week
    Last Update:
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  • 2
    Mibew Messenger 1.x
    "Mibew Messenger" - is unique software allowing visitors of your site to chat with your operators. This repo should be treated as an obsolete. For modern version of Mibew Messenger see https://sourceforge.net/projects/mibew/
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    Downloads: 2,149 This Week
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  • 3
    Vtiger CRM

    Vtiger CRM

    An enterprise-class CRM and more!

    Vtiger CRM enables sales, support, and marketing teams to organize and collaborate to measurably improve customer experiences and business outcomes. Vtiger CRM also includes email, inventory, project management, and other tools, providing a complete the business management suite. Download Vtiger CRM here or sign up for a free 15-day free trial of the cloud-based application with free updates and support at https://www.vtiger.com/
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    Downloads: 971 This Week
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  • 4
    phpList

    phpList

    Powerful Open Source Email Marketing app with analytics & segmentation

    phpList delivers Open Source email marketing, including analytics, list segmentation, content personalisaton and bounce processing. Extensive technical features and a secure and stable codebase are the result of over 17 years of continuous development. Used in 95 countries, available in 20+ languages, and used to send 25 billion email campaigns last year. Deploy it with your own SMTP server, or get a free hosted account at http://phplist.com.
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    Downloads: 571 This Week
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  • $300 Free Credits to Build on Google Cloud Icon
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  • 5
    CiviCRM

    CiviCRM

    Growing and Sustaining Relationships

    CiviCRM is an open source and freely downloadable constituent relationship management solution for advocacy, non-profit and other organizations. Learn more at http://civicrm.org
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    Downloads: 264 This Week
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  • 6
    SuiteCRM

    SuiteCRM

    The multi-award winning SuiteCRM is the world's best open source CRM.

    SuiteCRM, developed and maintained by SuiteCRM Ltd, is the world’s most popular open-source CRM solution. With nearly 2 million downloads and an estimated 5 million users globally, it is the go-to choice for businesses seeking flexibility without compromise. As a fully open-source platform, SuiteCRM allows organisations to scale and customise modules to fit their unique workflows. Whether deployed on-premise, as a SaaS solution, or in a private cloud, it ensures total data sovereignty and GDPR compliance. By delivering actionable insights across sales, marketing, and support, SuiteCRM empowers teams to turn data into growth and customer loyalty.
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    Downloads: 167 This Week
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  • 7
    Rukovoditel - Project Management/CRM

    Rukovoditel - Project Management/CRM

    Free web-based open-source project management application

    Rukovoditel is a free web-based open-source project management application. A far cry from traditional applications, Rukovoditel gives users a broader and extensive approach to project management. Its customization options allow users to create additional entities, modify and specify the relationship between them, and generate the necessary reports. The platform enables users to craft their own application that is specifically tailored for their activity (CRM, ERP, HRM, WMS, etc.). Rukovoditel can be implemented not only as a project management tool, but also as a CRM platform, or a combination of both.
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    Downloads: 133 This Week
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  • 8
    Group Office groupware and CRM

    Group Office groupware and CRM

    Take your office and CRM into the cloud!

    Installation instructions can be found here: https://groupoffice.readthedocs.io/en/latest/install/install.html Group Office is an open source groupware application. It makes your daily office tasks easier. Share projects, calendars, files and e-mail online. It is a complete solution for all your online office needs. From a customer phone call to a project and finally an invoice. The support system helps to keep your customers happy. Group Office is fast, secure and has privacy by design. You can stay in full control of your data by self hosting your cloud and e-mail. Our document editing solution keeps all data on the secured server instead of synchronising it to all user devices. GroupOffice is open source and modular. Which means it’s easy to customise and extend. You can turn off and on features and it enables any developer to create new modules for the platform.
    Downloads: 98 This Week
    Last Update:
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  • 9
    HotelDruid

    HotelDruid

    Hotel property management system

    HotelDruid is a property management system (PMS) designed to make hotel and hostel rooms, bed and breakfast apartments, or any other kind of daily rental easy to manage from a web browser.
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    Downloads: 167 This Week
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  • 10
    EspoCRM - Open Source CRM

    EspoCRM - Open Source CRM

    Moving in the right direction together!

    EspoCRM software is that it’s fully customizable. We strive to create a solution that fits different business and industry needs, without having to rely on a “one size fits all” approach or make you spend a fortune on customization. Demo: https://www.espocrm.com/demo/ Installation: https://docs.espocrm.com/administration/installation/ Customer relationship management (CRM) software is developing every day due to ever-changing global business environment and rapid advances in digitalization of the whole sales process. Being only a basic customer information database in the very beginning of its existence, CRM systems have evolved into something more than just sales software. Today, CRM is considered to be the entire approach to managing interaction with current and potential clients. The system fosters customer loyalty, automates the sales pipelines, streamlines business processes and provides powerful insights into sales performance. Apache / PHP / MySQL
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    Downloads: 76 This Week
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  • 11
    Twenty

    Twenty

    Building a modern alternative to Salesforce, powered by the community

    We’ve spent thousands of hours grappling with traditional CRMs like Pipedrive and Salesforce to align them with our business needs, only to end up frustrated — customizations are complex and the closed ecosystems of these platforms can feel restrictive. We felt the need for a CRM platform that empowers rather than constrains. We believe the next great CRM will come from the open-source community. We’ve packed Twenty with powerful features to give you full control and help you run your business efficiently. Contribute, self-host, fork. Break free from vendor lock-in and join us in shaping the open future of CRM. The days when the role of CRM platforms was to shift manual data entries to a database are over. Now, the data is already there. CRM 2.0 should be built around your data, allowing you to access and visualize any existing sources, not forcing you to retrofit your data into predefined objects on a remote cloud.
    Downloads: 14 This Week
    Last Update:
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  • 12
    YetiForce CRM

    YetiForce CRM

    The most affordable CRM system according to Capterra

    Are you looking for a system to boost your sales? Do you want to improve your relationships with customers? Do you want to contribute to the fastest growing open source project on GitHub? You can use YetiForce completely free of charge. With YetiForce’s help you will manage 12 business processes in your company, no matter the size. The vast number of features available for free helped us win the first place in Capterra’s “Most Affordable CRM Software” ranking. YetiForce’s open source code was released under a very flexible and liberal license, which gathers a large and active community around the project. You too can contribute to it no matter if you are a professional programmer or software development is just your hobby. Download YetiForce for free and find out why you should become one of more than 250 000 people who already use it. Testing versions: GitStable: https://gitstable.yetiforce.com/ GitDeveloper: https://gitdeveloper.yetiforce.com/
    Downloads: 54 This Week
    Last Update:
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  • 13
    Asterisk GUI client, VICIdial

    Asterisk GUI client, VICIdial

    VICIdial Contact Center Suite

    This software suite is designed to extend the functionality of the Asterisk PBX through platform-independant web-client applications. Includes the VICIdial inbound/outbound contact center application. The suite is scalable across multiple Asterisk servers.
    Downloads: 54 This Week
    Last Update:
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  • 14
    Mibew Messenger 3
    Mibew Messenger is an open-source live support application allowing visitors of your site to chat with your operators.
    Downloads: 228 This Week
    Last Update:
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  • 15
    CRM

    CRM

    An open-source, agentic-first CRM

    CRM is an open-source, agentic-first customer relationship management system built around a durable research agent. The agent operates on its own schedule and work queue, investigates contacts and companies, records supported facts, and schedules future checks. Rather than guessing personal details, it prices evidence and writes strong observations while sending weak evidence to a human for resolution. The interface manages contacts, companies, deals, tasks, pipeline views, and agent activity. Email threads, meetings, signature blocks, optional web research, and enrichment services can provide evidence. Durable sessions survive reloads and deployments, while a restricted sandbox prevents direct database access and network egress. The project is single-tenant and uses Google sign-in with an environment-based allow list.
    Downloads: 8 This Week
    Last Update:
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  • 16
    EspoCRM

    EspoCRM

    EspoCRM – Open Source CRM Application

    EspoCRM is a flexible, open-source Customer Relationship Management (CRM) platform that allows businesses to manage customer interactions, sales pipelines, marketing activities, and support processes. It is designed to be lightweight and user-friendly, with a modern web interface and strong customization capabilities. EspoCRM supports a wide range of modules and is suitable for small to medium-sized businesses looking for a self-hosted CRM solution that can be tailored to their needs.
    Downloads: 8 This Week
    Last Update:
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  • 17
    ERP and CRM suite, including eCommerce, inventory, warehouse, order, customer management, general ledger, MRP, POS. Database independent service-oriented architecture (SOA)
    Downloads: 49 This Week
    Last Update:
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  • 18
    Invoice Plane

    Invoice Plane

    A self-hosted open source application for managing your invoices

    InvoicePlane is an open-source invoicing and client management system designed for small businesses and freelancers. It enables users to create, send, and manage invoices and quotes efficiently. The system supports multiple languages, currencies, and tax rates, making it suitable for global use. InvoicePlane also provides detailed financial reporting and client management features.
    Downloads: 7 This Week
    Last Update:
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  • 19
    SuiteCRM

    SuiteCRM

    SuiteCRM - Open source CRM for the world

    SuiteCRM is an open-source customer relationship management (CRM) software that serves as an alternative to proprietary CRM solutions. It offers a wide range of features for managing customer interactions, sales processes, and marketing campaigns. SuiteCRM is modular and highly customizable, making it suitable for businesses of all sizes looking to manage customer data efficiently.
    Downloads: 7 This Week
    Last Update:
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  • 20
    SuiteCRM Translations

    SuiteCRM Translations

    SuiteCRM Translations Language Packs

    SuiteCRM, developed and maintained by SuiteCRM Ltd, is the world’s most popular open-source CRM solution. With nearly 2 million downloads and an estimated 5 million users globally, it is the go-to choice for businesses seeking flexibility without compromise. FAQ: Install a new language - https://docs.suitecrm.com/admin/installation-guide/languages/install-a-new-language/ Contribute Languagaes Translations - https://crowdin.com/project/suitecrmtranslations
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    Downloads: 110 This Week
    Last Update:
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  • 21
    ResCarta

    ResCarta

    Archive your personal history

    ResCarta Toolkit offers an open source solution to creating, storing, viewing, and searching digital collections. Applications in the toolkit let users create and edit metadata, convert data to open standard ResCarta format, index and host collections.
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    Downloads: 40 This Week
    Last Update:
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  • 22
    Onfinity All-in-One ERP

    Onfinity All-in-One ERP

    Onfinity is a modern, AI driven All-in-One ERP

    Onfinity (formerly Vienna Advantage) is a modern and future oriented ERP developed in C#.Net, jQuery, PostgreSQL and React Native Mobile app. Functional Details at: https://www.onfinity.io/erp-editions-comparison.php Open Source Modules: - Finance - Budgeting - Order Management - Asset Management - HR Management - Project Management - Customer Relationship Management - eCommerce and more Based on a No-Low Code Framework, Inbuilt Workflow Editor, Report Writer and more, it comes with an excellent Architecture. Community comes with Free community support, Access to Market with all Updates and Patches and implementation tools.
    Downloads: 44 This Week
    Last Update:
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  • 23
    DenchClaw

    DenchClaw

    Fully Managed OpenClaw Framework for all knowledge work ever

    DenchClaw is a local-first AI-powered CRM and productivity platform built on top of the OpenClaw framework, designed to transform a user’s entire computer into a programmable, agent-driven workspace. Unlike traditional cloud-based CRMs or AI tools, it runs entirely on the user’s machine and exposes a web interface locally, allowing full control over data, workflows, and automation without relying on external servers. The system combines database management, browser automation, and AI reasoning into a unified interface where users can interact with their data and tools using natural language commands. It can ingest data from sources such as Google Drive, Notion, Gmail, and CRM platforms, consolidating everything into a centralized workspace for analysis and action. One of its most distinctive capabilities is its ability to use the user’s existing browser session, enabling it to log into services, scrape data, and perform actions like outreach or research as if it were the user.
    Downloads: 5 This Week
    Last Update:
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  • 24
    Odoo

    Odoo

    Open-source business management software

    Odoo 18 is a comprehensive open-source business management software that offers a suite of integrated applications to streamline various organizational processes. Designed for flexibility and scalability, it provides tools for managing functions like sales, inventory, accounting, human resources, and customer relationships. Odoo's modular structure allows businesses to adopt only the features they need while maintaining the option to expand functionality as they grow. The open-source version is community-driven, making it cost-effective and continuously improving through global developer contributions. Its user-friendly interface and robust customization options make it a popular choice for small to medium-sized businesses seeking an adaptable and efficient ERP solution.
    Downloads: 74 This Week
    Last Update:
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  • 25
    Compiere ERP + CRM Business Solution
    Compiere ERP+CRM is the leading open source ERP solution for Distribution, Retail, Manufacturing and Service industries. Compiere automates accounting, supply chain, inventory and sales orders. Compiere ERP is distributed under GPL V2 by Compiere, Inc.
    Downloads: 26 This Week
    Last Update:
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