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CRM

Customer relationship management and sales tools

Open source CRM systems have matured into viable replacements for Salesforce, HubSpot, and Pipedrive, particularly for teams that need to customize their sales pipeline without paying per-seat fees that compound as organizations grow. Tools like Twenty, SuiteCRM, and EspoCRM offer contact management, deal tracking, email integration, and reporting dashboards that teams can extend through custom modules. Twenty, built on a modern TypeScript stack, has gained rapid adoption by providing a Notion-like interface for CRM data with full GraphQL API access. The financial case for self-hosted CRM is stark: a 50-person sales team on Salesforce Enterprise pays roughly $9,000 per month, while a self-hosted CRM on equivalent infrastructure costs a fraction of that. Beyond cost, self-hosting CRM data addresses a critical business concern -- customer contact information, deal values, and communication history are among the most sensitive datasets a company holds. Industries like real estate, legal services, and healthcare increasingly mandate that client data remain on controlled infrastructure. Modern open source CRMs deploy via Docker Compose with PostgreSQL backends and support OAuth-based SSO for enterprise authentication. When evaluating self-hosted CRM options, focus on email sync reliability, workflow automation capabilities, API completeness for custom integrations, and mobile app availability. The ability to own and query your customer data directly opens possibilities for analytics and AI enrichment that walled SaaS platforms restrict.

8 open source tools·4 proprietary tools

Open Source Alternatives

Free and open source tools in this category.

  • EspoCRM

    Open source CRM application with a clean UI and extensive customization options

    GPL-3.0 · 2.8k stars · CRM

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  • Chatwoot

    Open source customer engagement platform — alternative to Intercom for live chat and support

    MIT · 28.1k stars · CRM

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  • Zammad

    Open source helpdesk and ticketing system with beautiful UI and powerful features

    AGPL-3.0 · 5.5k stars · CRM

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  • Twenty CRM

    Modern open source CRM — a beautiful alternative to Salesforce and HubSpot

    AGPL-3.0 · 42.6k stars · CRM

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  • Erxes

    Open source experience operating system — HubSpot alternative with CRM, marketing, and support

    MIT · 3.9k stars · CRM

    0
  • SuiteCRM

    Enterprise open source CRM — Salesforce alternative with sales, marketing, and service modules

    AGPL-3.0 · 5.3k stars

    0
  • Papercups

    Open source live chat widget — Intercom alternative with Slack integration and customer management

    MIT · 6k stars

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  • FreeScout

    Free open source help desk and shared inbox — Zendesk/HelpScout alternative with email-based ticketing

    AGPL-3.0 · 4.2k stars

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Proprietary Tools

Commercial software in this category. Click to see open source alternatives.

  • HubSpot

    CRM, marketing, sales, and service software suite

    $20/mo · CRM

  • Intercom

    Customer messaging platform for sales, marketing, and support

    $39/mo · CRM

  • Zendesk

    Customer service and engagement platform with ticketing system

    $19/mo · CRM

  • Salesforce

    Enterprise CRM platform for sales, service, marketing, and commerce

    $25/mo · CRM

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