Open-source AI CRM for Claude and ChatGPT
- Free self-hosted open-source model without licensing fees.
- Native MCP server for connecting external AI agents.
- Mandatory user approval flow before modifying CRM records.
1.8kstars on GitHub
Zero-Cost Entry19 tools audited
Free Sales CRM & Pipeline Management & Open Source Software
Technical selection of platforms without financial barrier to entry: permanent free tiers, self-hosted projects, and open-source alternatives.
Free Limits & Commercial Threshold Matrix
Exact breakdown of quotas, credit card requirements, and commercial allowances before requiring an upgrade.
| Tool | Model | Conditions | Free Tier Details | SSO Tax | Action |
|---|---|---|---|---|---|
| Relaticle | Free | No credit card requiredCommercial use allowedUnlimited usage with no expiration | 100% Free and open source without commercial limits. | Standard | Try |
| Attio | Freemium | No credit card requiredCommercial use allowedUnlimited usage with no expiration | Plan gratuito permanente con funciones básicas de gestión de relaciones comerciales y límites en automatizaciones. | Single Sign-On Tax (Enterprise SAML) | Try |
| Odoo | Freemium | No credit card requiredCommercial use allowedUnlimited usage with no expiration | Acceso gratuito para una aplicación con usuarios ilimitados en la edición cloud, o despliegue libre de la versión comunitaria open source. | Standard | Try |
| Givebutter | Freemium | No credit card requiredRestricted to personal / non-commercial useUnlimited usage with no expiration | Acceso gratuito indefinido a herramientas esenciales de recaudación, páginas de donación y CRM con un modelo respaldado por propinas voluntarias. | Standard | Try |
| Streak | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | Permanent free tier with monthly usage allowances. | Single Sign-On Tax (Enterprise SAML) | Try |
| Lusha | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | Ofrece un conjunto limitado de créditos mensuales gratuitos para consultas de contactos individuales y uso inicial de la extensión de navegador. | Single Sign-On Tax (Enterprise SAML) | Try |
| Vidyard | Free | No credit card requiredCommercial use allowedMonthly recurring quota reset | Plan gratuito permanente con grabación básica de pantalla, alojamiento limitado y analítica estándar sin requerir tarjeta de crédito. | Single Sign-On Tax (Enterprise SAML) | Try |
| Clay | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | El plan gratuito incluye un volumen limitado de créditos mensuales para pruebas y enriquecimiento básico de datos. | Single Sign-On Tax (Enterprise SAML) | Try |
| Apollo | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | Incluye búsqueda básica de contactos y herramientas esenciales de prospección con límites mensuales de uso y consultas. | Single Sign-On Tax (Enterprise SAML) | Try |
| HubSpot | Freemium | No credit card requiredCommercial use allowedUnlimited usage with no expiration | Acceso permanente a herramientas básicas de CRM, gestión de formularios, chat en vivo y marketing por correo electrónico con limitaciones en el número de contactos. | Single Sign-On Tax (Enterprise SAML) | Try |
| AXL | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | El plan gratuito incluye 500 contactos, 5 GB de almacenamiento, 5,000 correos y 5,000 mensajes con límites estrictos. | Standard | Try |
| 延禾技术 | Freemium | No credit card requiredRestricted to personal / non-commercial useUnlimited usage with no expiration | Código fuente completo disponible en repositorios públicos para uso de aprendizaje y evaluación técnica autohospedada. | Standard | Try |
| BottleCRM | Free | No credit card requiredCommercial use allowedUnlimited usage with no expiration | Acceso completo al núcleo de código abierto bajo licencia MIT con usuarios y contactos ilimitados sin tarjeta de crédito. | Standard | Try |
| Reply | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | Acceso limitado a funciones de prueba y evaluación inicial sin necesidad de tarjeta de crédito. | Single Sign-On Tax (Enterprise SAML) | Try |
| Zoho | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | Permanent free tier with monthly usage allowances. | Standard | Try |
| Brevo | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | El plan gratuito incluye un límite diario de envíos de correo y gestión completa de contactos. | Single Sign-On Tax (Enterprise SAML) | Try |
| Capsule CRM | Freemium | No credit card requiredCommercial use allowedUnlimited usage with no expiration | Permite hasta 2 usuarios con acceso gratuito indefinido y funcionalidades esenciales de gestión de contactos. | Standard | Try |
| Rytr | Freemium | No credit card requiredCommercial use allowedMonthly recurring quota reset | Plan gratuito disponible con limites mensuales de generacion y contexto basico. | Standard | Try |
| B2BInsights | Free | No credit card requiredCommercial use allowedUnlimited usage with no expiration | Actualmente accesible como recurso gratuito durante su fase inicial de desarrollo. | Standard | Try |
Audited Free & Freemium Platforms (19)
AI-native CRM platform for modern revenue teams
- Highly customizable object-based interface
- Fast and native synchronization with email and calendars
- Powerful built-in automations and workflows
Integrated open-source platform for ERP, CRM, accounting, and enterprise business management.
- Vast ecosystem of interconnected modular applications
- Accessible flat pricing model for all applications
- Availability of an open-source community edition
55.4kstars on GitHub
All-in-one fundraising platform, marketing, and donor management for nonprofits.
- Generous free tier supported by voluntary donor tipping models.
- Built-in nonprofit donor CRM included without hidden base fees.
- Wide variety of native tools for events, auctions, and campaigns.
CRM integrated directly inside Gmail for managing sales and workflows.
- Full native integration within the Gmail web interface
- Automatic logging of emails and team activity
- AI-powered automation capabilities for data entry
Verified B2B data and prospecting platform for go-to-market teams and AI agents.
- Extensive global database of corporate contacts and direct phone numbers.
- Native API and MCP server support for AI assistants and developer tools.
- Browser extension optimized for fast professional network prospecting.
Business video platform for sales and marketing revenue teams
- Detailed real-time viewership analytics for sales lead tracking.
- Efficient browser extensions for quick screen and webcam recording.
- Native integrations with leading sales and marketing tools.
GTM engineering platform to integrate data and automate workflows with AI agents.
- Built-in access to over 150 third-party data sources
- Advanced workflow automation powered by AI agents
- Flexible custom prospecting workflow builder
AI-native go-to-market platform unifying B2B data, intelligence, and sales execution.
- Extensive B2B contact database with millions of verified records.
- Unification of data, intelligence, and sales execution in one workspace.
- Native integrations with major CRM systems and email providers.
AI-powered customer platform unifying marketing, sales, and support around a smart CRM.
- Complete unification of marketing, sales, and support data in a single central repository
- Extensive ecosystem of third-party integrations via established application interfaces
- Native workflow automation and built-in artificial intelligence features
AI-native sales and marketing platform to build funnels, manage leads and process payments.
- Unified platform combining website builder, CRM, and payments.
- Built-in AI assistant with support for external models via MCP.
- Permanent free tier with clear limits and no credit card required.
Java open-source multi-tenant SaaS member management, retail POS and marketing system.
- Modern decoupled stack utilizing Java Spring Boot and Vue 3.
- Open-source repository available for developer evaluation and local testing.
- Built-in industry editions for retail, food service, beauty, and automotive sectors.
1.8kstars on GitHub
Open-source CRM with zero per-seat fees for startups and small teams.
- Zero per-seat pricing removes cost scaling penalties as team size grows.
- Open-source core licensed under MIT ensures complete data ownership.
- Self-hosting capabilities allow full control over deployment infrastructure.
2.5kstars on GitHub
AI-powered sales outreach and multichannel cold email platform.
- Automated multichannel campaigns supporting email and social touchpoints.
- AI agents to scale personalization across large prospect lists.
- Native integrations with major CRM systems.
Comprehensive business software suite with 60+ integrated applications.
- Unified ecosystem with high interoperability between 60+ applications.
- Bootstrapped business model prioritizing long-term stability and user privacy.
- Broad functional coverage eliminating the need for multiple vendors for administrative tasks.
Multichannel marketing and sales platform integrating email, SMS, and CRM.
- Comprehensive multichannel support including email, SMS, and WhatsApp.
- Intuitive interface featuring guided automations and pre-built templates.
- Permanent free tier suitable for low-volume sending requirements.
Simplified CRM platform for contact management, sales pipelines, and business relationships.
- Intuitive interface with a quick learning curve for sales teams
- Broad ecosystem of native integrations with accounting and payment software
- Functional mobile applications for contact and sales management on the go
AI relationship management assistant to unify client context and draft communications.
- Unifies client context across multiple communication tools and calendars.
- Drafts messages and follow-ups adapted to the user's voice tone.
- Includes a permanent free tier for initial evaluation.
Evidence-led prospecting agent for export teams.
- Strict human-in-the-loop requirement for outbound actions
- Evidence-backed research with visible sources
- Clear separation of business fit and contact verification