Composr CMS:
Your Data, Your Privacy, Your Control
Do you need to build a website? Are you tired of being locked down by third-party website builders and software? Composr CMS gives you full control and full autonomy over your website and its data!Your Data, Your Privacy, Your Control
The Composr software is Free and Open Source, so anyone can download and use it. Build any website you want, from a simple informational site to a complex eCommerce platform and anything in-between.
What is Composr CMS?
Composr is a very flexible CMS with advanced social, interactive and dynamic functionality.Hundreds of features and building blocks are available out of the box. You don't need to rely on sketchy and potentially unmaintained third-party addons any longer.
Composr is embraced by a wide variety of industries, from Fortune-100 companies, government agencies, small startups / hobby sites, and much more! We make all the best ideas available to everyone.
Latest News

Now back on GitHub
We are now mirroring our GitLab repository to GitHub. Read more for more information.

Composr.app New Features
Read more to see a video outlining some of the new features in composr.app compared to compo.sr.

Composr 10.0.51 released
10.0.51 released. Read the full article for more information, and upgrade information.
Older news
Get an Early Preview of Composr CMS v11
Check out these sites running Composr CMS v11 who opted in to be featured:If you have a Composr CMS v11 site, you can opt-in (or out) to have it featured when installing (on step 2) or in your configuration in the Admin Zone > Setup > Configuration > Privacy / legal compliance options. See the site showcase for more information.
Remember, version 11 is still in beta. We do not recommend running it in production unless you are aware of the responsibilities and implications (e.g. you will probably have some bugs which could affect operations or even corrupt data, and v11 might have undetected security issues).