Concrete is Free and Open Source (FOSS) under the MIT software license.
Customize and extend the platform to suit your unique requirements providing your organization with complete control over your website's design and functionality and reducing the costs and risks associated with relying on proprietary software.
We want everyone to be able to easily and legally use Concrete as a fundamental part of communicating their ideas online. We're building a web for the greatest good.
Concrete CMS is trusted by hundreds of thousands of organizations including Fortune 500 companies and the U.S. Military.