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 Days 2012

  • Gold Sponsors

    Clouds Sky - Where The Open Cloud Lives!

    OpenCms(オープンソースCMS)・クロールなどの企画・開発・運用・サポートならユビキャスト

Download OpenCms

  • Integrates TinyMCE WYSIWYG editor with IE 9 support as well as Italian and Russian localizations.
    Size:83508KB

    Click here to download

Upgrade OpenCms

  • Update your existing OpenCms installation to version 8.0.4 with the easy to use upgrade wizard.
    Size:72012KB

    Click here to download

Try the OpenCms Live Demo

Latest News

  • OpenCms Days 2012 - Call for papers still open! 4 weeks left to submit your abstract

    May 10, 2012 - OpenCms Days 2012 will take place from Monday, September 24 to Tuesday, September 25, 2012 in Cologne, Germany. This year's OpenCms Days motto is "OpenCms 8 – Experiences, Possibilities, Potentials". Be there to meet and mingle with leading OpenCms experts.

  • OpenCms Wiki server changeover

    May 7, 2012 - Alkacon Software has moved the OpenCms Wiki to a new server. While functionality remains the same, the wiki software and all extensions have been updated to the latest available version.

  • OpenCms issue tracker now on Github

    Apr 16, 2012 - Alkacon Software has moved OpenCms issue tracking from bugzilla to Github. Please report bugs, issues or problems in OpenCms here.

  • Update of Alkacon OCEE for OpenCms released

    Apr 12, 2012 - Alkacon OCEE 3.0.4 extends an OpenCms 8 installation with LDAP, Clustering, Replication and improved performance. OCEE increases scalability, availability and fail-over security of mission-critical high-traffic OpenCms sites of a medium or large Enterprise. Adds HTTP request load balancing and full integration of existing LDAP user directories with the OpenCms permission system.

OpenCms Days 2012

  • OpenCms Days 2012 Conference and Expo: OpenCms 8 – Experiences, Possibilities, Potentials

    OpenCms Days 2012 will take place Monday, September 24 to Tuesday, September 25 2012 in Cologne, Germany.

    This 4th annual gathering of OpenCms users will focus on success stories and projects based on OpenCms 8. Experts from around the world will share their experiences with this latest OpenCms release. Alkacon will also unveil Version 8.5 of OpenCms which will contain several functional enhancements.

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

    OpenCms Days 2012 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.

    Your email address:

    More info