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

  • OpenCms 9.0.1 ready for download

    Alkacon and OpenCms logo 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. 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...
  • Check out the slides from OpenCms Days 2013

    The conference slides from OpenCms Days 2013 are now available for download. OpenCms Days 2013 featured several interesting sessions around OpenCms presented by speakers from all over the world. Check the slides in case you missed the event. 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 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 9.0.1 Release Notes

    Feb 6, 2014 - The OpenCms 9.0.1 release notes contain detailed information about the fixes and new features in this maintenance update.

  • Alkacon OCEE 4.0.0 / 3.5.3 released

    Nov 18, 2013 - 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.

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  • 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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