OpenCms - Professional Content Management

Easy to Use, Open Source, Reliable

OpenCms from Alkacon Software is an enterprise-ready open source web content management system (CMS) based on Java and XML. OpenCms is platform independent - Runs on: Windows, Linux, Unix, Solaris, Mac OS. OpenCms supports all top databases: MySQL, Oracle, PostgreSQL, MS SQL. OpenCms works with the most popular Application Servers: Tomcat, JBoss, BEA, Websphere, Glassfish and Resin Professional. OpenCms has a browser based GUI, compatible with all top browsers: Internet Explorer, Mozilla Firefox, Chrome, Safari, Opera. Download OpenCms, the open source enterprise level website content management system, for free.

OpenCms from is a professional, easy to use website content management system. OpenCms helps content managers worldwide to create and maintain beautiful websites fast and efficiently.

The fully browser based user interface features configurable editors for structured content with well defined fields. Alternatively, content can be created using an integrated WYSIWYG editor similar to well known office applications. A sophisticated template engine enforces a site-wide corporate layout and W3C standard compliance for all content.

OpenCms is based on Java and XML technology. It can be deployed in an open source environment (e.g. Linux, Apache, Tomcat, MySQL) as well as on commercial components (e.g.  Windows NT, IIS, BEA Weblogic, Oracle).

As true open source software, OpenCms is free of licensing costs.

OpenCms Headlines

  • Alkacon OCEE 4.5 for OpenCms 9.5 released

    Alkacon OpenCms Enterprise Extensions / OCEE OCEE 4.5.0 is required for OpenCms version 9.5. Version 3.5.5 for OpenCms 8.x and 2.1.8 for OpenCms 7.x are also available. OCEE is a commercial OpenCms extension that offers support for LDAP, clustering, replication and accelerated page load times. more...
  • OpenCms 9.5 Docker image

    OpenCms and Docker Test OpenCms 9.5 using the official image from the Docker hub registry - the fastest way to evaluate and test OpenCms. more...
  • Step up to OpenCms 9.5!

    Alkacon and OpenCms logo This version brings template creation without the need to code, plus other features like user generated content, on-the-fly PDF generation, greatly improved documentation and much more - all presented in a responsive demo website based on Bootstrap. more...
  • Alkacon OpenCms Partner Program Launched

    Alkacon partners have a proven record of successful OpenCms projects and help their customers to efficiently implement OpenCms projects. more...

Download OpenCms

  • Step up to OpenCms 9.5! This version brings template creation without the need to code, plus other features like user generated content, on-the-fly PDF generation, greatly improved documentation and much more - all presented in a responsive demo website based on Bootstrap.
    Size:146148KB

    Click here to download

Upgrade OpenCms

  • Update your existing OpenCms installation to version 9.5 with the easy to use upgrade wizard.
    Size:114775KB

    Click here to download

Try the OpenCms Live Demo

Latest News

  • Alkacon OCEE 4.5 for OpenCms 9.5 released

    Nov 18, 2014 - OCEE 4.5.0 is required for OpenCms version 9.5. Version 3.5.5 for OpenCms 8.x and 2.1.8 for OpenCms 7.x are also available. OCEE is a commercial OpenCms extension that offers support for LDAP, clustering, replication and accelerated page load times.

  • OpenCms 9.5 Docker image

    Nov 11, 2014 - Test OpenCms 9.5 using the official image from the Docker hub registry - the fastest way to evaluate and test OpenCms.

  • Step up to OpenCms 9.5!

    Nov 3, 2014 - This version brings template creation without the need to code, plus other features like user generated content, on-the-fly PDF generation, greatly improved documentation and much more - all presented in a responsive demo website based on Bootstrap.

  • OpenCms 9.5 Release Notes

    Nov 3, 2014 - The OpenCms 9.5 release notes contain detailed information about new features and the fixes in this version.

Take the guided tour

Subscribe to the mailing list

  • The opencms-dev mailing list is the place for all questions, comments and suggestions for OpenCms and the main forum of the OpenCms community.

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