Fat Free CRM review
A focused, self-hosted CRM for developers who want open-source control over core sales workflows.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Fat Free CRM is a self-hosted, open-source customer relationship management platform built with Ruby on Rails. It is designed for developers and teams that want a minimal CRM they can deploy and extend themselves. Core coverage includes contact and account management, lead management, campaign management, opportunity tracking, task management, group collaboration, custom fields, tagging, and team organization. Its MIT license also suits organizations that prefer an open-source foundation for internal customization.
Deployment flexibility is a central part of the product. Fat Free CRM can run on Linux, macOS, Heroku, or as a Rails engine, with database support for MySQL, SQLite, and PostgreSQL. That range fits teams comfortable managing their own application environment and choosing a database configuration that matches their stack. Plugin extensions add webhooks, record merging, and time tracking, while webhooks provide the listed integration path. Developers should expect the platform’s ecosystem to be shaped primarily by self-hosting and extension work rather than by a broad catalog of native connections.
The feature set stays focused on traditional CRM operations rather than expanding into a wider sales technology suite. Teams get a practical structure for organizing accounts, prospects, campaigns, opportunities, tasks, and collaboration, but the product does not include a native mobile application or verified AI and email synchronization features. Choose Fat Free CRM if open-source licensing, deployment control, Ruby on Rails compatibility, and core CRM workflows matter most. Consider another CRM if mobile access, built-in AI, email sync, or broader integration coverage is essential to daily operations.
Fat Free CRM pros and cons
- Where it wins
- Covers contacts, leads, campaigns, opportunities, and tasks
- Self-hosted deployment supports Linux, macOS, Heroku, and Rails Engine
- MIT-licensed with plugins for webhooks, record merging, and time tracking
- Where it doesn't
- No native mobile application
- Integration coverage centers on webhooks
- Does not include verified AI or email synchronization features
Fat Free CRM fact sheet, pricing and score →
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