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 10.0.1 available

    OpenCms 10 Being the greatest OpenCms update for years, version 10 brings a vastly improved user experience that combines the intuitive "Direct Edit" approach of OpenCms with a new, well integrated Lauchpad app center. OpenCms 10.0.1 is a maintenance update for 10.0.0 installations. It fixes several issues that persisted in previous releases. This version focuses on performance and stability. more...
  • OpenCms 10.0.1 Release Notes

    The OpenCms 10.0.1 release notes contain detailed information about the updates and fixes in this version. more...
  • Alkacon OCEE 5.0.1 for OpenCms 10.0.1 available

    Alkacon OpenCms Enterprise Extensions / OCEE OCEE 5.0.1 supports OpenCms 10.0.1 and brings a greatly improved Accelerator caching performance based on reducing the CPU load. This version also fixes an issue in the OCEE Cluster module. Updated OCEE packages for 9.x and 8.x based OpenCms installations are also available. more...
  • OpenCms 10 - X marks the spot

    OpenCms 10 Being the greatest OpenCms update for years, version 10 brings a vastly improved user experience that combines the intuitive "Direct Edit" approach of OpenCms with a new, well integrated Lauchpad app center. OpenCms 10 also ships with the new, responsive Apollo Template. Based on Bootstrap, the Apollo Template is fully customizable without coding. more...

Download OpenCms

  • OpenCms 10.0.1 fixes several issues that persisted in previous releases. This version focuses on performance and stability. OpenCms 10.0.1 from Alkacon brings a vastly improved user experience that combines the intuitive "Direct Edit" approach of OpenCms with a new, well integrated Launchpad app center. It ships with the responsive Apollo Template based on Bootstrap.
    Size:148482KB

    Click here to download

Upgrade OpenCms

  • Upgrade your existing OpenCms installation to the current stable version 10.0.1 with this easy to use wizard.
    Size:119411KB

    Click here to download

Latest News

  • OpenCms 10.0.1 available

    Jun 14, 2016 - Being the greatest OpenCms update for years, version 10 brings a vastly improved user experience that combines the intuitive "Direct Edit" approach of OpenCms with a new, well integrated Lauchpad app center. OpenCms 10.0.1 is a maintenance update for 10.0.0 installations. It fixes several issues that persisted in previous releases. This version focuses on performance and stability.

  • OpenCms 10.0.1 Release Notes

    Jun 14, 2016 - The OpenCms 10.0.1 release notes contain detailed information about the updates and fixes in this version.

  • Alkacon OCEE 5.0.1 for OpenCms 10.0.1 available

    Jun 14, 2016 - OCEE 5.0.1 supports OpenCms 10.0.1 and brings a greatly improved Accelerator caching performance based on reducing the CPU load. This version also fixes an issue in the OCEE Cluster module. Updated OCEE packages for 9.x and 8.x based OpenCms installations are also available.

  • OpenCms 10 - X marks the spot

    Mar 23, 2016 - Being the greatest OpenCms update for years, version 10 brings a vastly improved user experience that combines the intuitive "Direct Edit" approach of OpenCms with a new, well integrated Lauchpad app center. OpenCms 10 also ships with the new, responsive Apollo Template. Based on Bootstrap, the Apollo Template is fully customizable without coding.

Download OpenCms Beta

  • Upgrade your existing OpenCms installation to the current stable version 10.0.1 with this easy to use wizard.
    Size:119411KB

    Click here to download

OpenCms Days 2016

  • OpenCms Days 2016 Conference and Expo

    OpenCms Days 2016 will take place September 26 to 27 in Cologne, Germany.

    Highlight of the international user conference and expo will be the introduction of OpenCms 10.5. 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 2016 is targeted towards an international audience. The language spoken at the event and used for all presentations is English.

    More information...

OpenCms Days Gold Sponsors

Try the OpenCms Live Demo