Talking to customers · Independent · 22 Oct 2026

fatfreecrm/fat_free_crm

Ruby on Rails CRM platform

← Talking to customers
Fat Free CRM: open-source customer tool. Self-hosted sales and contact management system.

In simple English

This tool helps you track your customers, sales leads and team tasks in one private place. You run it on your own server instead of paying a monthly fee to a big company. It keeps your data entirely under your control. Setting it up requires some technical knowledge about web servers. It is free to download and use.

What it is

Fat Free CRM is a customer relationship management (CRM, a system to manage your company's relationships and interactions with customers and potential customers) platform written in the Ruby programming language. It includes built-in tools for handling leads, campaigns, contacts, and sales opportunities.

What it is good for

Solo builders and small teams who want a free, self-hosted system to manage sales contacts without sharing customer data with third-party software vendors.

Stars3.6k
LicenceCustom
Latestv0.28.0 (2026-04-19)checked 22 Oct 2026
Last code change2026-10-19
Written inRuby
Setup effort
4 / 5
Payoff
3 / 5
Good
  • Runs on your own server so you own all your customer data.
  • Includes campaign management, contact lists, and task tracking out of the box.
  • Supports plugins for extra features like webhooks (automated messages sent from one app to another when something happens) and time tracking.
Watch for
  • Requires knowledge of Ruby on Rails (a framework for building websites in the Ruby programming language) and database administration to install and maintain.
  • Needs a dedicated server or cloud hosting provider to stay online.
  • Older codebase means you may encounter deprecated packages or require configuration updates.
Replaces

Paid cloud CRM subscriptions

Works well with

PostgreSQL

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Install
git clone https://github.com/fatfreecrm/fat_free_crm.git
cd fat_free_crm
bundle install
rails server

Independent: reviewed for Repo Radar outside the daily editions. Every independent repository

On Stack Radar: Sales & Customers › CRM & Contact Management › CRM.

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