Download OpenCms

OpenCms comes in two distributions: The binary distribution and the source distribution . The binary distribution contains everything you need to run an OpenCms website. The source distribution contains the complete source code, as well as the libraries required to compile the source.

If you intend to run OpenCms, we recommend that you use the latest release. Just download the binary distribution ZIP file and follow the instructions on the installation page. In case you want to work on the OpenCms source code, have a look at the core build page.

If you want to obtain the latest OpenCms development version, you can get it from our GitHub repository.

OpenCms 12.0 Distribution

New in OpenCms 12.0 Headless API: Access XML contents as JSON objects. Headless API: List all resources in a folder tree as JSON. Headless API: Load the results of a user defined list as JSON. ...

Version 12.0 - October 12, 2021  More information...

OpenCms 12.0 Upgrade Wizard

This OpenCms 12.0 update wizard allows an almost automatic update to version 12.0 from the following previous OpenCms versions: 11.0.0 - 11.0.2 10.5.0 - 10.5.4 10.0.0 - 10.0. ...

Version 12.0 - October 12, 2021  More information...

OpenCms 12.0 Source Distribution

The source code of the OpenCms 12.0 release. The full source code is also available at GitHub: https://github.com/alkacon/opencms-core/releases/build_12_0_0 Who should use this version 12.0 source distribution download? ...

Version 12.0 - October 12, 2021  More information...

Alkacon OpenCms Add-On Module Package (OAMP)

The Alkacon OpenCms Add-On Module Package (also called OAMP) is a set of free, open source extension modules for OpenCms. Alkacon OAMP adds front-end related features to OpenCms that may be useful in case special functionalities are required. ...

Version 1.0.0 - October 1, 2009  More information...

Download OpenCms

  • 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.
    Size:233847KB

    Click here to download

Upgrade OpenCms

  • Update your existing OpenCms installation to the current stable version 12.0 with the easy to use upgrade wizard.
    Size:233123KB

    Click here to download

Latest News

  • 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.

  • OpenCms 12 Release Notes

    Oct 12, 2021 - The OpenCms 12 release notes contain detailed information about the new features and fixes in this version.

  • Alkacon OCEE 12.0

    Oct 12, 2021 - Alkacon OCEE 12.0 is the latest OCEE release for OpenCms 12. It adds new functions for managing log files in an OpenCms cluster, as well as improvements for the accelerator and the user synchronization.

  • OpenCms Docker image

    Oct 12, 2021 - Test OpenCms using the official image from the Docker hub registry - the fastest way to evaluate and test OpenCms. The image is well suited for evaluation and test purposes of the latest OpenCms release. We provide a docker-compose file to get OpenCms and the database running with just one command.

Try the OpenCms Live Demo