workflowstacks
sales

Free-CRM: Open‑source sales hub to scale your customer pipeline

Free-CRM delivers a full‑featured, ASP.NET Core‑based CRM for startups and SMEs, letting founders manage leads, sales and purchases without hidden fees.

From the repo · “Take control of your business with Free CRM, an open-source Customer Relationship Management (CRM) software. Built for businesses of all sizes, Free CRM is your all-in-one solution for driving growth. Experience the power of open-source CRM software without hidden costs. Powered by ASP.NET Core 9.x (Demo username: admin@root.com|pwd:123456)”

248 stars70 forksC#Guide quality 9/10 · reviewed Oct 22Updated 7/24/2026100% free · open source
What it does

Free-CRM is an open-source Customer Relationship Management software that helps startups manage sales and customers with ease.

When to use it
  • •When you need a free and customizable CRM solution for your startup
  • •When you want to manage sales and customer relationships without hidden costs
  • •When you're looking for an all-in-one solution for driving business growth
Ready-to-paste prompt
Use the demo username and password to log in and create a new contact: https://localhost:5001/Contacts/Create
Heads up: Make sure you have ASP.NET Core 9.x installed on your machine and the correct runtime version is targeted in your project settings to avoid compatibility issues
Saves to your device
Use with Claude
New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install
Claude Code
mkdir -p ~/.claude/skills/free-crm && curl -fsSL https://workflowstacks.com/api/skills/free-crm/claude-skill -o ~/.claude/skills/free-crm/SKILL.md
Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)
claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Free-CRM: Open‑source sales hub to scale your customer pipeline works
Codeflow
Free to inspect

Free-CRM: Open‑source sales hub to scale your customer pipeline is a very large C# project (~449k lines across 1358 code files). It is a full software project: use it through its install path rather than reading it end to end. Last commit 3 months ago, Other license, has a test suite.

Size
Very large codebase
~449k lines · 1358 code files · days to read — use, don't read
Setup
Developer setup
A real software project. Use it via its install path; don't expect to read it all.
Runs on
Docker
No API keys detected
C# 99%JavaScript 1%
Where to start reading
  1. 1
    README.md
    Start here — what it does and how to install it
  2. 2
    Core/Application/DependencyInjection.cs
    Inside Core/ — the main logic begins here
What's in each folder
Core/Core code — the actual logic258 files
Presentation/Folder2232 files
Infrastructure/Deployment / infrastructure96 files
READMEHas testsDocumentedNo CIDocker readyOther licenseUpdated 3 mo ago
Quick Actions
Details
Creator
go2ismail
Language
C#
Category
sales
Published
2/19/2025

Are you the creator of this tool? and earn 85% of every sale.

Show it off in your README:

Featured on WorkflowStacks
[![Featured on WorkflowStacks](https://workflowstacks.com/api/badge/free-crm.svg)](https://workflowstacks.com/skills/free-crm?utm_source=github&utm_medium=badge)
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Do this with a working workflow

Pages we wrote and tested that put a skill like this to work — importable n8n templates, outcome guides and Claude Desktop configs.

Free n8n template

ICP Fit Checker

Score every lead against your ideal customer profile (1-5) with a reason — so you spend outreach time only on prospects who’ll actually buy.

Outcome guide

Score your leads by ideal-customer fit

You describe your ideal customer once and keep leads in a Google Sheet. The workflow scores each 1–5 for fit with a one-line reason, so you sort and work the best first.

MCP config

Puppeteer (browser) MCP config

Let Claude control a headless browser — navigate, screenshot, scrape.

Ready-to-run pack · one-time $39

Lead Finder

Turn a business type + city into a spreadsheet of real leads.

Includes the tested workflow and a written setup playbook. Needs: Google Places API key (free tier).

See what you get

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