Best Open Source CRM Software in 2026
Compare 50 verified free CRMs you can download and self-host. No monthly fees, full control, honest license information.
50
Verified CRMs
9
Categories
0
Archived listed
14 October 2026
Last verified
Top 10 Free Open Source CRM Software
Twenty
A modern, community-driven open source alternative to Salesforce.
58.3k • TypeScript (React, NestJS), PostgreSQL
View details →Krayin CRM
Free, open source CRM built with Laravel for SMEs and enterprises.
24k • PHP (Laravel), MySQL
View details →SuiteCRM
Mature, enterprise-grade open source CRM with a huge community.
5.8k • PHP, MySQL/MariaDB
View details →EspoCRM
Flexible, user-friendly CRM with a clean interface and a solid API.
3.5k • PHP, MySQL/MariaDB
View details →Dolibarr ERP CRM
Simple, modular ERP and CRM for small businesses, freelancers and foundations.
7.7k • PHP, MySQL/MariaDB/PostgreSQL
View details →Odoo Community
All-in-one business suite with a capable CRM app.
55k • Python, PostgreSQL
View details →Frappe CRM
Simple, modern open source CRM for sales teams, built on the Frappe Framework.
3.8k • Python (Frappe), Vue, MariaDB
View details →OroCRM
B2B-focused CRM built on the Symfony-based OroPlatform.
687 • PHP (Symfony), PostgreSQL/MySQL
View details →Atomic CRM
A lightweight, full-featured CRM built with React, shadcn/ui and Supabase.
1.4k • TypeScript (React), Supabase
View details →Vtiger CRM
Feature-rich CRM with sales automation and custom modules.
258 • PHP, MySQL
View details →Find a CRM for your situation
From sales teams to churches, there is an open source option.
From the blog
All articles →Guide
How to Choose an Open Source CRM: A 9-Point Checklist
A practical checklist for picking the right open source CRM: license, project health, tech stack, features, security, total cost and how to run a proper trial.
Cost
Open Source CRM vs SaaS CRM: What Self-Hosting Really Costs
Self-hosting a CRM removes per-seat fees but adds hosting, backups and admin work. Here is a simple way to compare the true cost and decide.
Licensing
Open Source CRM Licenses Explained: MIT, GPL, AGPL, Open Core and Source-Available
Not every "open source" CRM is truly open source. Understand MIT, GPL, AGPL, LGPL, MPL-style, open-core and source-available licenses before you choose.
Why choose open source CRM software?
Save money
No per-user subscription. You pay for hosting and your own time, and costs stay flat as your team grows.
Full control
Your data stays on your server. No vendor can change pricing, limit features or shut you down.
Easy to customize
With the source code you can add fields, integrations and workflows that suit your business.
Best open source business software for small business
In-depth comparisons of free, self-hostable tools for accounting, invoicing, payroll, inventory, POS, ERP and more.
Ready to self-host?
Need a server to host it?
Self-hosting a CRM needs a server. PHP and MySQL apps can often run on ordinary web hosting, while Docker, Node, Python or Java apps usually need a VPS. Check each project's requirements first. Hostinger offers both shared web hosting and VPS plans.
Affiliate disclosure: this is an affiliate link. If you buy through it we may earn a commission at no extra cost to you. CRMs are listed independently of any hosting partner. Learn more.
Frequently asked questions
What is an open source CRM?
An open source CRM is customer relationship management software whose source code is public under an open license. You can inspect it, modify it and host it yourself instead of paying a per-user subscription to a vendor.
Is open source CRM really free?
The software license is free, but you still pay for hosting, backups and the time to maintain it. Some projects are open core, meaning a few enterprise features are paid. We flag this on each CRM page.
Which open source CRM is best for a small business?
EspoCRM, Dolibarr and SuiteCRM are common starting points because they run on standard PHP hosting. Twenty and Frappe CRM suit teams that prefer a modern interface. The best choice depends on your team, so use our comparison checklist.
Can I self-host a CRM on shared hosting?
PHP-based CRMs such as EspoCRM, Dolibarr, SuiteCRM and Krayin generally can run on shared or VPS hosting. Node, Python, Ruby and Java projects usually need a VPS or Docker.
How do you verify the CRMs listed here?
We check that each project has a public repository, a real open license file, is not archived and has recent activity. Read the full methodology on our blog.