

Apache Traffic Server is a fast, scalable and extensible HTTP/1.1 and HTTP/2.0 compliant caching proxy server.

Apache Jena a free and open source Java framework for building Semantic Web and Linked Data applications.

Apache Qpid is an open-source messaging system designed to implement the Advanced Message Queuing Protocol.

Apache ActiveMQ is a popular and powerful open source messaging and Integration Patterns server.

Apache Beam is an open source unified programming model designed to define and execute data processing pipelines, including ETL, batch and stream processing.

Apache Mesos is a cluster manager that distributes resources across applications and databases.

Apache Continuum is an enterprise-ready continuous integration server with features such as automated builds, release management, role-based security, and integration with popular build tools and source control management systems.

The Apache Xalan Project develops and maintains libraries and programs that transform XML documents using XSLT standard stylesheets.

Apache Cayenne(tm) is an open source persistence framework licensed under the Apache License, that provides object-relational mapping (ORM) and remoting services.

Community-led development since 1999. FoundationProjectsPeopleGet InvolvedDownloadSupport ApacheHome. We consider ourselves not simply a group of projects sharing a server, but rather a community of developers and users.