Fat Free CRM
Fat Free CRM: A focused, self-hosted CRM for developers who want open-source control over core sales workflows. Ranked #210 of 238 in CRM Software by our editors (3.0/10); pricing: Free plan; best for developers wanting a minimal open-source CRM.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forDevelopers wanting a minimal open-source CRM
- Free planYes
- Paid fromFree
- Facts checked22 Sep 2026
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
Our verdict on Fat Free CRM
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.
Your product? Our editors can test Fat Free CRM in depth and publish a review, labelled as paid · from $149/mo →
Fat Free CRM pricing
Fat Free CRM fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Free trial | Not verified |
| Visual sales pipeline | Not verified |
| Email sync | Not verified |
| Marketing automation | Not verified |
| AI features | No |
| Mobile app | Not verified |
| Open source | Yes |
| Deployment | Self-hosted |
| Support | Community, Docs |
| Built for | Small business, Mid-market (editorial estimate) |
| Pricing | Free plan |
| Website | fatfreecrm.com |
| Facts checked | 22 Sep 2026 |
Alternatives to Fat Free CRM
- HubSpot CRMA capable free CRM with contact, deal, email, AI, mobile, and integration coverage.9.4
- Salesforce Sales CloudA broad CRM for mature sales teams that need forecasting, automation, AI, and extensibility.9.3
- Zoho CRMA broad CRM with a free plan, automation, AI, analytics, mobile apps, and APIs.9.2
See all Fat Free CRM alternatives →
Used Fat Free CRM? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Fat Free CRM for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
Fat Free CRM is listed in our CRM Software directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/fat-free-crm/"><img src="https://www.itechguides.com/best/badge/fat-free-crm.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update