concrete5 is an open source CMS (content management system) that allows you to build websites, intranets, eCommerce, Intranets, government and educational websites.

Concrete5 is Mobile Optimized & Responsive.

Your website will look good on any device. Built with modern browsers and mobile devices in mind. They employ the latest HTML, CSS and Javascript techniques.

*Responsive layouts *Responsive video *Responsive images *Mobile navigation/menus *Bootstrap *Less

Concrete5 has built-in styles that optimize sites for mobile devices. However, you may want to edit your theme. Here is a guide to ensure you use mobile best practices.

Before you begin

We recommend backing up your site before making any changes or updates. That way you’ll have a copy of it to restore if necessary.

If you’re not sure how to backup your Concrete5 site, follow the Concrete5 backup and restore documentation. If you find it difficult, concrete5 is free and open source, there's a number of ways you can find training and support. Here are some ways you can get support.

First, start by exploring the concrete5 docs, here:

If that doesn't do it, our forums are full of people who are happy to help if you provide details on what you're doing and what you've tried. You can find that here:

If you're looking for someone who can really work with you hands on to learn how to build and maintain a site concrete5 provides paid support and training.

What version of concrete5 is my site?

Your version may affect what changes you can make. These options expand greatly when your installation of concrete5 is up-to-date.

You can find how to check which version you are using here or here

Update Concrete5 to the latest version.

We strongly recommend keeping your website up to date. There are a few ways to upgrade a Concrete5 site. If you head to Dashboard > System and Settings > Backup and Restore > Update Concrete5, you can download updates from You can find alternate methods of upgrading concrete5 check out the upgrading concrete5 guide.

How to make a concrete5 site mobile friendly

First, learn how to install a concrete5 addon by reading add-on installation documentation. Visit the concrete5 themes marketplace to search for an theme suitable for your site. To create a custom mobile theme we have a a comprehensive to to building a great concrete5 theme.

Take the mobile friendly test

We hope your site is now mobile-friendly and ready to be served to your mobile audience. We invite you to use the Mobile-Friendly Test tool now.

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