Concrete CMS (formerly concrete5) is an Open Source Content Management System for teams. The vendor states users can run a secure website that content contributors will love using with Concrete CMS. Concrete is a platform that grows with the user's needs.
The user experience is built around in-context editing and is designed to be as easy to use as a word processor so that users spend less time training people, and less time having to fix things.
As an open source framework the user can build complex applications as features like permissions, workflow, file management, calendar, forms, SEO and so much more are built right in. A marketplace of add-ons & themes and an active community can help quickly deliver solutions using Concrete CMS.
The vendor boasts fortune 500 companies, nonprofits, individuals and the U.S. Army as users of Concrete CMS to power critical parts of their web presence.