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Best Open Source CRM

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Rankings use category fit, feature coverage, pricing signals, public reception, and recency. Affiliate relationships do not affect scores.

0.0 - 10.0

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Best 1 OpenProject
Free Plan Available From $14.99/user/month (Cloud Basic plan)

OpenProject is a robust, web-based project management software designed for teams of all sizes. It offers comprehensive features including Gantt charts, task boards, issue tracking, and document management. Its modular design allows users to customize the platform to fit specific workflows. OpenProj...

8.23 Great
Why this score

OpenProject earns a 9.1/10 due to its exceptional feature depth, open-source flexibility, and versatile deployment options that cater to both small teams and large enterprises. It scores highly on value (free self-hosted option), functionality (comprehensive PM tools), and customizability (modular architecture). Points are deducted for a steeper learning curve and an interface that lags behind newer competitors in visual polish.

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2 Mautic
Mautic
Free Plan Available From $25/mo

Mautic is a comprehensive open-source marketing automation platform designed for businesses of all sizes. It offers features like email marketing, lead scoring, website tracking, and campaign management. Mautic excels in its ability to integrate with various CRMs and e-commerce platforms, providing...

7.04 Good
Why this score

Mautic scores 9.2/10 due to its powerful open-source nature, extensive integrations, and user-friendly interface. However, the steep learning curve for advanced features and limited native mobile app support slightly lower the score.

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3 OpenERP (Odoo)
Free Plan Available From $75/month

Odoo, formerly OpenERP, is a modular ERP software solution designed for businesses of all sizes. This open-source platform integrates core business processes including accounting, CRM, inventory management, and e-commerce. It’s particularly useful for companies seeking a flexible and adaptable syste...

6.87 Fair
Why this score

Odoo scores 8.5/10 due to its comprehensive features and flexibility, but it can be complex for beginners and may require advanced technical skills for customization.

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4 Open Source CRM
Free Plan Available

Open Source CRM is a collection of open-source customer relationship management tools. It includes features like contact management, lead tracking, and reporting. These tools are ideal for small businesses looking to manage their customer interactions efficiently.

4.10 Poor
Why this score

The Open Source CRM scores 7.4/10 due to its cost-effectiveness and flexibility, but it lacks the out-of-the-box functionality and dedicated customer support found in proprietary CRMs.

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5 HubSpot Open Source
Free Plan Available

HubSpot offers a limited open-source version alongside its commercial offerings. While not a full-fledged open-source platform like Mautic, it provides core CRM and marketing automation functionalities. It allows for self-hosting and customization, appealing to developers and businesses seeking grea...

3.35 Poor
Why this score

HubSpot scores 8.6/10 due to its comprehensive suite of marketing and CRM tools, extensive integrations, and support for businesses of all sizes. However, the lack of advanced customization options and limited mobile app functionality are minor drawbacks.

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6 Salesforce Open Source
Free Plan Available

Salesforce offers several open-source tools and libraries for sales automation, including Apex and Visualforce. These tools provide developers with the flexibility to build custom applications that integrate seamlessly with Salesforce's CRM platform. Suitable for businesses looking to leverage exist...

3.20 Poor
Why this score

The score of 7.8/10 is driven by the flexibility and integration capabilities, but it's limited by potential security concerns and lack of official support.

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7 AppFlowy
AppFlowy

AppFlowy is an open-source alternative to Notion, offering a similar block-based editor, databases, and Kanban boards. You can self-host it for full data control or use their cloud. It emphasizes privacy, customization, and community-driven development. It's ideal for Notion users who want open-sour...

8 Apptivo CRM

Apptivo CRM is a versatile open source CRM designed for small to medium-sized businesses. It offers a wide range of features, including sales force automation, marketing automation, project management, and invoicing, all within a single platform. Its user-friendly interface and customizable dashboar...

9 Jitbit Helpdesk
Free Plan Available From $25/user/month

Jitbit Helpdesk is a long-standing, straightforward ticketing system available as a SaaS or self-hosted application. It focuses on email-based support with features like a shared inbox, automation rules, SLAs, and a knowledge base. It is known for its simplicity and reliability. It targets small to...

6.23 Fair
Why this score

Jitbit Helpdesk scores 7.0/10 due to its user-friendly interface and robust automation features, which are highly beneficial for small businesses. However, it lacks advanced reporting tools and mobile app support, limiting its appeal for larger organizations or those requiring more comprehensive solutions.

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10 Agile CRM
Agile CRM
Free Plan Available From $25/user/month

Agile CRM is an affordable all-in-one platform combining sales, marketing, and service automation. It includes contact management, email tracking, telephony, help desk, web analytics, and marketing automation workflows in a single dashboard. It's designed to be a cost-effective alternative for small...

6.06 Fair
Why this score

Agile CRM scores 8.3/10 due to its comprehensive features and affordability for small businesses, but it lacks some advanced reporting capabilities and has occasional performance issues.

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11 Odoo (Community Edition)

Odoo is a comprehensive ERP suite that includes a powerful CRM module. The Community Edition provides the core or functionality for free, allowing businesses to manage leads, opportunities, and customers within an integrated ecosystem of inventory, accounting, and manufacturing. While it lacks some...

12 Monica CRM
Monica CRM

Monica is a unique open-source personal CRM designed for individuals and small teams who want to manage their professional relationships without the complexity of enterprise software. It focuses on 'relationship' managementtracking birthdays, last contacts, and personal notes. While it lacks heavy s...

13 Twenty CRM
Twenty CRM

Twenty is a newer entrant in the open source CRM space, built with a modern tech stack (TypeScript, React). It aims to provide an experience similar to high-end SaaS platforms like Pipedrive or Salesforce but with the freedom of open source. Its focus on developer experience and a sleek, fast UI mak...

14
SU

This represents a specific, highly stable fork of the core CRM code, often maintained by smaller, dedicated community groups. It is recommended when the primary goal is maximum stability and minimal feature churn, even if it means sacrificing some modern UX elements. It's a niche choice for highly r...

15 Odoo Community

The Odoo Community Edition is a powerful starting point for businesses looking to integrate their sales and operations. It provides the core CRM functionalitylead tracking, or pipelines, and contact managementwhile allowing users to add other modules like inventory or manufacturing as they grow. Bec...

16 Odoo CRM
Odoo CRM

Odoo CRM is part of the broader Odoo ERP suite, offering a modular CRM solution that integrates seamlessly with other Odoo modules like accounting, inventory, and manufacturing. It provides a comprehensive platform for managing sales, marketing, and customer relationships. While the open-source vers...

17 EspoCRM
EspoCRM

EspoCRM is a high-performance, open-source CRM designed for businesses that need a balance between power and simplicity. It features a highly intuitive interface and allows users to create custom entities, fields, and workflows with ease. Its architecture is built for speed, making it excellent for...

18 Vtiger CRM Open Source

Vtiger offers a comprehensive, battle-tested open-source platform that excels in integrating sales, marketing, and support functions. It provides excellent out-of-the-box functionality for ticketing systems and lead scoring, making it highly attractive for service-oriented businesses. Its structure...

19 SuiteCRM (Developer Edition)

SuiteCRM is one of the most mature and feature-rich open-source CRMs available. It provides a comprehensive suite of tools including marketing automation, sales force management, and advanced reporting. While it has a steeper learning curve than EspoCRM, its ability to handle complex business logic...

20 OroCRM
OroCRM

OroCRM is a powerful open-source CRM specifically engineered for B2B companies. It excels in managing complex customer journeys and integrates seamlessly with e-commerce platforms. Its architecture allows for high scalability, making it suitable for large organizations that need to manage thousands...

21 Bitrix24 (Self-Hosted)

While Bitrix24 is primarily known as a SaaS platform, its self-hosted version offers an incredibly deep suite of tools including CRM, project management, internal communications, and marketing. It is one of the most comprehensive 'all-in-one' business suites available. Because it is so massive, it c...

22 SuiteCRM Community Edition (Legacy)

SuiteCRM is a feature-rich platform that provides many of the capabilities found in high-end enterprise CRMs. It includes advanced or lead management, sales force automation, and comprehensive reporting tools. The Community Edition offers a powerful foundation for organizations that need complex wor...

23 CiviCRM (Enterprise)

This refers to the custom-tailored implementation of CiviCRM for specific large-scale or initiatives. By utilizing its open-source core, organizations can build unique modules that handle specialized data like medical records for health non-profits or complex educational tracking for schools. It pro...

24 vtiger CRM
vtiger CRM

Vtiger CRM is a versatile, cost-effective solution that offers a wide range of features including sales, marketing, and customer support. It is particularly well-regarded for its ability to handle complex workflows without the enterprise price tag of competitors like Salesforce or Dynamics. Vtiger p...

25 Vtiger (Community Edition)

While the prompt excludes Vtiger CRM Open Source as a primary recommendation, it remains a significant player in the open source space for those specifically seeking legacy compatibility. It offers a comprehensive suite of tools including project management and inventory modules. However, because ne...

26 ERPNext (CRM Module)

ERPNext is a full-fledged open-source ERP system where the CRM module is one component. It is best suited for organizations that view CRM not as a standalone tool, but as the initial touchpoint within a much larger operational system (e.g., linking leads directly to project billing). Its strength is...

27 SugarCRM (Community Edition)

SugarCRM was once the leading open-source CRM before shifting its focus. However, the Community Edition remains a powerful tool for those who need a highly stable and customizable platform. It offers deep customization capabilities and a robust framework that allows developers to build complex busin...

28 BookStack (for CRM use)

While not a traditional transactional CRM, BookStack is invaluable for managing the *knowledge* aspect of customer relationships. It allows teams to build centralized, searchable knowledge bases for support documentation, onboarding guides, and internal process documentation. For CRMs, it acts as th...

29 Zurmo CRM
Zurmo CRM

Zurmo CRM is a modern, open-source CRM built on a flexible, component-based architecture. It allows for extensive customization and integration with other business systems. Zurmos visual workflow builder simplifies automation tasks, and its focus on user experience makes it relatively easy to learn...

30 Crush CRM
Crush CRM

Crush CRM is a lightweight, open-source alternative designed for users who find enterprise CRMs too overwhelming. It provides the core essentials: contact management, lead tracking, and basic task organization. Its simplicity is its greatest strength, allowing small teams to get up and running quick...

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Frequently Asked Questions

Which open source crm leads this ranking?

Lunoo's current ranking places OpenProject first with a displayed score of 8.23/10. That is the result of Lunoo's scoring model, not a claim that one choice is best for every person.

How should I read the score and confidence label?

The 0 to 10 score is Lunoo's ranking judgment. Strong confidence means 10 or more recorded comparison checks, some means 2 to 9, and provisional means fewer than 2.

What supports this ranking?

Lunoo combines category fit, feature coverage, pricing and value signals, public reception, recency, and peer comparisons. Public source links support factual item details when available, but they are not required for membership in this 37-item ranking.

Can I compare the leading open source crm?

Yes. The comparison links put adjacent leaders side by side so you can inspect differences that one ranking score cannot capture.

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