Proven. Since 2006.
Continuous and predictable development. International agencies and companies are successfully using Contao.
High development standards, regular updates, fast and reliable fixes, and 4 years of support for LTS versions.
Thanks to the consistent operating concept, editors quickly find their way around Contao.
Individual, search engine-friendly and barrier-free design implementation for desktop, tablet, and smartphone.
As an open source CMS, Contao is based on open web standards and is easily adaptable to your needs.
Competent partners and a strong community respond in the forum or in professional trainings.
Regardless of whether you want to run multiple websites in one Contao installation, maintain a website in multiple languages or need detailed user permissions to work on a website collaboratively – Contao has everything on board by default. Furthermore, you can enhance its functionality with extensions to fit your needs.
Contao is compatible with current laws and especially the GDPR. All data protection measures are implemented by default, for instance, Contao uses the double opt-in method for all subscriptions and registrations and it keeps a log for the legally required storage period.
You can adjust the title and description of each page and you can configure whether search engines shall index a site or not. Redirects and error pages send the correct HTTP status codes automatically. In addition, Contao uses schema.org to tag content for search engines.
In Contao, you can sort elements via drag and drop, copy and paste them via clipboard and even edit multiple records at once. Every change is automatically stored as a new version, so you can go back in history at any time.
Contao is compatible with Varnish and other HTTP caches and it supports modern technologies such as HTTP2, deferred image resizing and ESI. Even with big installations with hundreds of thousands of pages, Contao remain performant and delivers your website in a flash.
Contao uses modern password hashing algorithms and supports securing user accounts with 2-factor authentication. Moreover, user accounts are locked automatically if there are too many failed login attempts.
Over 150,000 websites have already been built with Contao, from landing pages to portals to e-commerce and enterprise sites. Users especially appreciate that despite of its many possibilities, Contao is still easy to learn and intuitive to use for editors.
Take a look at which projects the Contao partners have already created with Contao and which components they have used.
The Contao Manager, a graphical interface for Composer, allows you to install and manage Contao as well as additional extensions directly in your browser. Even if your installation should become unavailable, you can recover it with the Contao Manager.
The right choice for your project
Long term support
Contao has a reliable and predictable development cycle, which provides regular versions as well as LTS versions with a long term support of 4 years.
Contao is a German-speaking project with a big community and regular events in the DACH countries. You will therefore find many resources in German such as presentations, videos and extensions.
Thanks to hooks and events, you can manipulate the program flow in various places. Insert tags allow you to embed dynamic content anywhere. And even if you update Contao, your customized templates will be preserved.
Powered by Symfony
Contao is based on the Symfony Full Stack Framework. You will find your way around quickly if you have worked with Symfony before and you can use the over 11,000 available Symfony bundles to customize Contao.
Open Source CMS
Contao is open source software licensed under the LGPL-3.0. The license permits the free use of the software even for commercial projects.
You can track the development of Contao on GitHub and you are welcome to join in if you want. If you think you have found a security problem in Contao, please report it responsibly according to our security policy.