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 18.0 Distribution

New in OpenCms 18 New "Place element" mode in the page editor as alternative to drag & drop. Reused content in the page and form editor is now clearly marked. Automatic typographical correction of quotation marks in editors. ...

Version 18.0 - October 8, 2024  More information...

OpenCms 18.0 Upgrade Wizard

This OpenCms 18 update wizard allows an almost automatic update to version 18 from the following previous OpenCms versions: 17, 16, 15, 14, 13, 12 11.0.0 - 11.0.2 10.5.0 - 10.5.4 10.0.0 - 10.0. ...

Version 18.0 - October 8, 2024  More information...

OpenCms 18.0 Source Distribution

The source code of the OpenCms 18 release. The full source code is also available at GitHub: https://github.com/alkacon/opencms-core/releases/build_18_0_0 Who should use this version 18 source distribution download? ...

Version 18.0 - October 8, 2024  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 18 adds a new "Place element" mode in the page editor that allows precise element placement as an alternative to drag & drop. Reused content is now clearly marked. Automatic typographical correction of quotation marks has been added to all of the editors. “Dead links” in content that is entered in a WYSIWYG editor are now automatically disabled. Our Mercury template includes several new features, such as setting different image formats for mobile and desktop and many more.
    Size:249633KB

    Click here to download

Upgrade OpenCms

  • Update your existing OpenCms installation to the current stable version 18 with the easy to use upgrade wizard.
    Size:206043KB

    Click here to download

Latest News

  • OpenCms 18 available

    Oct 8, 2024 - OpenCms 18 adds a new "Place element" mode in the page editor that allows precise element placement as an alternative to drag & drop. Reused content is now clearly marked. Automatic typographical correction of quotation marks has been added to all of the editors. “Dead links” in content that is entered in a WYSIWYG editor are now automatically disabled. Our Mercury template includes several new features, such as setting different image formats for mobile and desktop and many more.

  • OpenCms 18 Release Notes

    Oct 8, 2024 - The OpenCms 18 release notes contain detailed information about the new features and fixes in this version.

  • Alkacon OCEE 18

    Oct 8, 2024 - Alkacon OCEE 18 is the latest OCEE release for OpenCms 18. This version features a license key mechanism that allows to share the license key on several servers in a cloud installation.

  • Documentation website for the Mercury template

    Jul 8, 2024 - The Mercury template from Alkacon Software is a comprehensive, modular template based on Bootstrap 5 for OpenCms. This feature-rich template now has a complete and exhaustive documentation website.

Try the OpenCms Live Demo