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.

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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: 3,698 This Week
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  • 2
    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.
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    Downloads: 707 This Week
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  • 3
    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: 768 This Week
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  • 4
    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/
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    Downloads: 463 This Week
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  • 5
    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: 532 This Week
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  • 6
    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: 514 This Week
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  • 7
    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: 306 This Week
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  • 8
    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: 231 This Week
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  • 9
    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: 169 This Week
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  • 10

    PHP Address Book

    Simple, web-based address & phone book

    Simple, web-based address & phone book, contact manager, organizer. Groups, addresses, e-Mails, phone numbers & birthdays. vCards, LDIF, Excel, iPhone, Gmail & Google-Maps supported. PHP / MySQL based.
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    Downloads: 132 This Week
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  • 11
    Mibew Messenger 3
    Mibew Messenger is an open-source live support application allowing visitors of your site to chat with your operators.
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    Downloads: 665 This Week
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  • 12
    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: 71 This Week
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  • 13
    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: 15 This Week
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  • 14
    Relaticle

    Relaticle

    The Next-Generation Open-Source CRM Platform written with Laravel

    Relaticle is a self-hosted knowledge graph and note linking platform designed to help users organize, connect, and explore ideas in a visual and intuitive way. It blends the simplicity of a note-taking system with the power of a graph database, allowing users to create nodes for concepts, link them through relationships, and navigate their thoughts like a map instead of a linear document. The interface lets you write plain text notes and tag or connect them dynamically, making it easier to uncover patterns and connections over time instead of losing insights in a long, unstructured list. Because it’s built with productivity and exploration in mind, Relaticle offers fast search, semantic context awareness, and the ability to zoom from high-level overviews down to specific node details. It also supports self-hosting so users retain full control over their data without relying on third-party servers or cloud subscriptions.
    Downloads: 15 This Week
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  • 15
    OpenPetra

    OpenPetra

    Free Administration Software for Non-Profits

    OpenPetra is an administration software for charities and can be used to manage personnel, supporters, book keeping, gift receipting, accounts payable, etc.
    Downloads: 85 This Week
    Last Update:
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  • 16
    X2CRM

    X2CRM

    X2CRM - Workflow, Sales, Marketing, Workflow, Custom Apps, PHP, MySQL

    X2CRM Open Source Sales CRM: X2Engine, X2CRM is an Open Source PHP Customer Relationship Management, Sales, Contact Management, Customer Service and Marketing CRM software application. X2CRM helps you optimize your contacts to help you sell more and grow your business. Very powerful B2C and B2B sales management app. Build on top of the Yii framework. Supports all browsers, iPads, iPhones and most mobile devices. X2CRM Key Features Workflow Designer Mobile Apps Web and Facebook Lead Capture Forms Lead Nurturing, Scoring and Intelligent Routing Contact Activity Management Sales Process Work-flow Engine Email Correspondence Product and Sales Quotes User Profile Pages and Activity Streams Field Security, Roles and Sales Teams Visual Form Editor for Admins Reporting Dashboard iPad and Mobile Device Apps X2Studio, an administrative tool, allows developers to create and share new application modules without any programming knowledge.
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    Downloads: 122 This Week
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  • 17
    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: 184 This Week
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  • 18
    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
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  • 19
    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: 11 This Week
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  • 20
    OpenEMM e-mail & marketing automation

    OpenEMM e-mail & marketing automation

    software for email automation (newsletters, transaction mails, etc.)

    This is an archive for old versions of OpenEMM. You will find the latest version of OpenEMM here: https://wiki.openemm.org OpenEMM is a browser-based enterprise application for email automation like info and marketing newsletters, transaction mails or multi-stage email campaigns. OpenEMM offers tons of features for professional users, among them: a great user interface, template-based HTML mailings, automatic bounce management, mail opening and link tracking, lots of graphical realtime statistics, a content management system, self-defined and behaviour-based target groups, a multi-queue mail backend for maximum sending performance, a time-driven automated data import and export feature, an extensive set of webservices, a plugin interface to easily extend the core functionality, a scripting feature to enhance the functionality of OpenEMM with triggerable customized actions and an audit-proof user activity log.
    Downloads: 55 This Week
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  • 21
    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: 10 This Week
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  • 22
    Onfinity Open Source Manufacturing ERP

    Onfinity Open Source Manufacturing ERP

    Free open source manufacturing ERP and CRM: BOM, MRP, stock, accounts

    Onfinity (formerly VIENNA Advantage) is a free and open source ERP and CRM, built for manufacturers and used well beyond them. The community edition, Pluto, is the same code as the paid editions. No user limit, no time limit. Licence: EPL. In the package: accounts (ledger, receivables, payables, bank, budgets, several companies and currencies); purchase (requisition, RFQ, order, receipt, landed cost); sales and CRM (quotation to invoice, price lists, quantity discounts, leads); stock (warehouses, bins, batches with expiry, min/max, transfers); manufacturing (multi-level BOM, work orders, MRP, make to order); projects; HR (employees, leave, attendance). Low-code Application Dictionary, dashboards, mobile app, Onfinity Market. C#/.NET on IIS, HTML5 client, PostgreSQL 12+ or Oracle 12c+. Not in the free edition: hosting, support desk, payroll, country tax modules, AI assistant, DMS. Register free for manuals, videos, training and 30 days' support: login.onfinity.io/register.aspx
    Downloads: 68 This Week
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  • 23
    Support Incident Tracker

    Support Incident Tracker

    Open source support tracking in your browser

    Support Incident Tracker (or SiT!) is a web based application for tracking technical support calls/emails. Engineers work to Service Level Agreements and incidents are flagged if they stray outside of them.
    Downloads: 50 This Week
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  • 24
    Epesi BIM Free & Open Source CRM

    Epesi BIM Free & Open Source CRM

    Open-source CRM/ERP: contacts, calendar, email, tasks & file sharing

    Epesi BIM is a free, open-source CRM and ERP web application for managing contacts, companies, calendar, email, tasks, phone calls, notes and file attachments — all in one self-hosted system you fully control. Built-in webmail (Roundcube) lets you archive emails directly onto the contact or company they belong to, turning your inbox into organized, searchable business records. Every contact, task and event can carry shared notes and files, so your team stops losing information across personal inboxes and drives. As a customer relationship management and business information manager, Epesi also doubles as an extensible module framework: add inventory, invoicing, project tracking or any custom module your business needs, growing it into a full ERP. Runs on ordinary LAMP stack - PHP/MySQL hosting, works as an installable Progressive Web App on desktop and mobile, and includes a modern dark-mode interface. Actively maintained, PHP 8 compatible, MIT licensed.
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    Downloads: 34 This Week
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  • 25

    RepairCenter

    Application for managing the repair company.

    An quick&dirty application that I am writing for my repair shop. Lack documentation, proper error messages and any kind of support. I have no idea when i'll update it again. Consider it abandoned and feel free to pick up.
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    Downloads: 45 This Week
    Last Update:
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