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 OpenCms Partner Program Launched

    Alkacon partners have a proven record of successful OpenCms projects and help their customers to efficiently implement OpenCms projects. more...
  • OpenCms Days 2014 - Save the date!

    OpenCms Days 2014 - Save the date! This years` OpenCms Days will take place from November 3 - 4, 2014 in Cologne, Germany. One highlight of the international user conference and expo will be the release of OpenCms 9.5. more...
  • Alkacon OCEE 4.0.0 / 3.5.3 released

    Alkacon OpenCms Enterprise Extensions / OCEE Alkacon OCEE is a commercial extension for OpenCms that offers Support for LDAP, Clustering, Replication and improved performance. Version 4.0.0 is required for the new OpenCms version 9.0. This release adds support for the site configuration tool in the Cluster Manager. Also available is OCEE version 3.5.3 for OpenCms 8.5 and 8.0. more...
  • OpenCms Live Demo Website

    Do you want to take a quick test drive of OpenCms to get a first impression of its features? No problem: Try out the OpenCms live demo website. The live demo website is intended for users that want to get a quick overview of the features and the "look and feel" of OpenCms, without the requirement of doing a local installation first. more...

Download OpenCms

  • OpenCms 9.0.1 is available! This version is a maintenance update for OpenCms 9 that fixes a number of issues and adds some functional enhancements. Download OpenCms 9.0.1 for free.
    Size:125177KB

    Click here to download

Upgrade OpenCms

  • Update your existing OpenCms installation to version 9.0.1 with the easy to use upgrade wizard.
    Size:97654KB

    Click here to download

Try the OpenCms Live Demo

Latest News

  • Alkacon OpenCms Partner Program Launched

    Jun 30, 2014 - Alkacon partners have a proven record of successful OpenCms projects and help their customers to efficiently implement OpenCms projects.

  • OpenCms Days 2014 - Save the date!

    Jun 3, 2014 - This years` OpenCms Days will take place from November 3 - 4, 2014 in Cologne, Germany. One highlight of the international user conference and expo will be the release of OpenCms 9.5.

  • Alkacon OCEE 4.0.1 / 3.5.4 released

    Feb 20, 2014 - OCEE 4.0.1 is required if you want to use OCEE with OpenCms version 9.0.1. A new version 3.5.4 for OpenCms 8.x is also available. OCEE is a commercial extension for OpenCms that offers Support for LDAP, Clustering, Replication and accelerated page load times.

  • OpenCms 9.0.1 ready for download

    Feb 6, 2014 - OpenCms 9.0.1 is released for public download. This version is a maintenance update for OpenCms 9 that fixes a number of issues and adds some functional enhancements. Includes extended PDF documentation.

OpenCms Days 2014

  • OpenCms Days 2014 Conference and Expo

    OpenCms Days 2014 will take place  Monday, November 3 to Tuesday, November 4 in Cologne, Germany.

    Highlight of the international user conference and expo will be the release of  OpenCms 9.5. OpenCms Days will be the perfect opportunity to exchange experiences around OpenCms with high profile participants and speakers from all over the world.

    Visit this 2 day conference and expo to meet and mingle with leading OpenCms experts and other OpenCms users.

    OpenCms Days 2014 is targeted towards an international audience. The language spoken at the event and used for all presentations is English.

    More information...

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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