There is no single "best" CRM, only the best one for your situation. Below, each group lists the most-starred projects in our directory (verified 14 October 2026). Click through for license, stack and links.
Sales & General CRM
Classic sales CRMs for leads, contacts, deals and quotes. A safe starting point for most small businesses.
- Krayin CRM: Free, open source CRM built with Laravel for SMEs and enterprises. (MIT)
- SuiteCRM: Mature, enterprise-grade open source CRM with a huge community. (AGPL-3.0)
- Fat Free CRM: Simple, lightweight Ruby on Rails CRM with no bloat. (MIT)
- EspoCRM: Flexible, user-friendly CRM with a clean interface and a solid API. (AGPL-3.0)
See all 13 in this group in the directory →
ERP + CRM Suites
Choose these when CRM must connect to invoicing, inventory, accounting or HR.
- Odoo Community: All-in-one business suite with a capable CRM app. (LGPL-3.0 (Community edition))
- ERPNext: Full open source ERP with a strong CRM module. (GPL-3.0)
- IDURAR ERP CRM: ERP, CRM and invoicing built with the MERN stack. (AGPL-3.0)
- Ever Gauzy: Open business management platform covering ERP, CRM, HRM, ATS and project management. (AGPL-3.0)
See all 10 in this group in the directory →
Modern / Developer-First
Newer TypeScript, Python and Laravel projects with clean interfaces, APIs and developer-friendly code.
- Twenty: A modern, community-driven open source alternative to Salesforce. (AGPL-3.0 (some files under a commercial license))
- Frappe CRM: Simple, modern open source CRM for sales teams, built on the Frappe Framework. (AGPL-3.0)
- Bottle CRM: Open source CRM for startups and enterprises built with Django and SvelteKit. (MIT)
- Atomic CRM: A lightweight, full-featured CRM built with React, shadcn/ui and Supabase. (MIT)
See all 7 in this group in the directory →
Nonprofit, Church & Community
Built around donors, members, congregations and community groups.
- ChurchCRM: Free church management software for people, families, groups and donations. (MIT)
- CiviCRM: The leading open source CRM for nonprofits, NGOs and membership organisations. (AGPL-3.0)
- OpenPetra: Open source administration software for charities and non-profits. (GPL-3.0)
Marketing & Customer Support
Marketing automation and customer conversations. Often used alongside a sales CRM.
- Chatwoot: Open source customer engagement platform with a shared inbox. (MIT (the enterprise/ directory is under a separate license))
- Mautic: The world's leading open source marketing automation platform. (GPL-3.0)
Personal CRM
Private contact managers for your own network rather than a sales team.
- Monica: Personal CRM to remember everything about friends, family and contacts. (AGPL-3.0)
- Meerkat CRM: Simple self-hosted CRM for your personal life. (MIT)
- PingCRM: Personal networking CRM with AI-drafted follow-ups. (AGPL-3.0)
AI-First & Messaging
AI-assisted and messaging-first CRMs, including WhatsApp-centred tools. Mostly younger projects, so evaluate maturity.
- DeskcommCRM: Self-hosted CRM with AI agents for WhatsApp sales. (MIT)
- Cordys CRM: Open source AI CRM from the team behind 1Panel and DataEase. (GPL-3.0 with additional terms (logo and copyright must be kept))
- wacrm: Self-hostable CRM template for WhatsApp with a shared inbox and pipelines. (MIT)
- Relaticle: Self-hosted CRM that AI agents can work in, with REST API and MCP tools. (AGPL-3.0)
Low-Code Platforms
Platforms and builders where you shape the CRM yourself instead of adopting a fixed one.
- Corteza: Open source low-code platform for building CRM and business apps. (Apache-2.0)
- Open Mercato: TypeScript framework with ready CRM, ERP and commerce modules. (MIT)
- REBUILD: Configurable zero-code business platform with CRM scenarios and an AI builder. (GPL-3.0)
- Iceburg CRM: Metadata-driven Laravel CRM builder with optional AI assist. (AGPL-3.0)
Industry & Niche
Purpose-built tools for recruiters, consultancies, IT providers and online merchants.
- CRMEB: E-commerce and mall system with built-in CRM and marketing features. (Apache-2.0)
- ITFlow: All-in-one PSA for IT service providers and MSPs. (GPL-3.0)
- OpenCATS: Open source applicant tracking system and recruitment CRM. (MPL-2.0 (original 2007 code under the CATS Public License 1.1))
- Pydici: CRM, billing and staffing tool for consulting companies. (AGPL-3.0)
Quick picks
- I want the easiest start: EspoCRM or Dolibarr (standard PHP hosting).
- I want the most features: SuiteCRM or Odoo Community.
- I want a modern developer experience: Twenty or Atomic CRM.
- I run a nonprofit: CiviCRM or ChurchCRM.
- I sell through WhatsApp: look at the AI & Messaging group and test carefully.
Unsure how to decide? Use our 9-point checklist.