OpenCms
Java and XML website content management system from open source components.
www.opencms.org/repositorydocs
OpenCms is a website content management system written in Java and XML, developed by Alkacon Software GmbH & Co. KG. It runs as a Java web application on a servlet container, uses JSP for template logic, and keeps content in a database that can be MySQL, MariaDB, Oracle, PostgreSQL, MS SQL Server, DB2 or HSQLDB. Pages can be served dynamically or exported to static HTML files, and one installation can host several websites.
The installation guide describes a manual install of the web application archive on Tomcat, and the project also publishes a Docker image.
Worth knowing
Alkacon sells OCEE, a commercial extension for OpenCms, which the project homepage describes beside the open source release.
The installation guide in the repository names Tomcat 9 only, while the README says the current Jakarta variant runs on Tomcat 10.1, Tomcat 11 or Jetty 12. The README is the newer statement, so check the Tomcat version against it before installing.
Identity
Rendering and deploy
- Runs as
- Always on5
- Rendering
- On a server, Static output1
- Install with
- Docker image or manual WAR deployment on a servlet container5
Releases
Adoption
Sources
- 2026-10-26: links, description, Maintainer, Runtime, Categories, Templating, Admin interface, Databases, Rendering, License, License model
github.com/alkacon/opencms-core/blob/main/README.md - 2026-10-26: links, Written in, License, GitHub stars
api.github.com/repos/alkacon/opencms-core - 2026-10-26: Maintained by, Headquarters
www.alkacon.com/en/impressum - 2026-10-26: Content storage
www.opencms.org/en - 2026-10-26: Runs as, Install with
github.com/alkacon/opencms-core/blob/main/assets/docs/INSTALL.md - 2026-10-26: First release
repo1.maven.org/maven2/org/opencms/opencms-core/ - 2026-10-26: Current major version, Last release
api.github.com/repos/alkacon/opencms-core/releases - 2026-10-26: Contributors
api.github.com/repos/alkacon/opencms-core/contributors?per_page=1