OpenCms Development

This section provides Information about how to participate in the OpenCms development process and technical information about using OpenCms.

If you plan to install OpenCms for the first time, you should read the Installation overview and the following pages in order to obtain a proper setup of the system - it's very simple in a standard environment based on Tomcat.

For building a web site managed by OpenCms, you only need a running instance of the system and some knowledge how to build OpenCms templates. For detailed information, please download the OpenCms documentation.

As experienced Java Developer, you might want to build OpenCms from the sources. Read the Core build instructions and dig into the source code.

If you want to contribute to the OpenCms project and take part in the further development of the system, read How to contribute and provide the OpenCms community with examples, new modules and improved documentation!

To support the community and the further development, we also provide a mailing list, a bug tracking system and a Github repository for developers to obtain detailed information and to access the latest version of the source code.

Latest News

  • OpenCms 13 available

    Apr 13, 2022 - OpenCms 13 features a new plugin system as a more flexible replacement of the "headincludes" functionality. Geo search functionality has been added to find contents by geo coordinates. Extensions to the template variant mechanism allow setting overrides and renaming of formatter keys. There are also refinements for the "Mercury" default template as well as security improvements.

  • OpenCms 13 Release Notes

    Apr 13, 2022 - The OpenCms 13 release notes contain detailed information about the new features and fixes in this version.

  • Alkacon OCEE 13

    Apr 13, 2022 - Alkacon OCEE 13 is the latest OCEE release for OpenCms 13. This version fixes a number of issues that have been detected in Alkacon OCEE 12 and improves the licensing mechanism.

  • OpenCms 12 available

    Oct 12, 2021 - OpenCms 12 features a headless JSON API for REST content access, together with several JavaScript demo applications that show how to use it. The default "Mercury" template has been greatly improved. Template variants allow to completely switch the generated HTML of a website simply by configuration. The updated WebDAV implementation enables mounting the OpenCms virtual file system from any WebDAV client.

Take the guided tour

Try the OpenCms Live Demo