Java Archive is a file format for distributing Java class files, associated metadata and resource files. It is a compressed archive based on the {{< glossary “ZIP” >}} format, so can be inspected with any tool capable of reading a ZIP file. Stroom and Stroom-Proxy are distributed as JAR files.

JavaScript Object Notation is a file/data format for storing/transmitting structured data. It has similarities to XML, is less verbose, but is more simplistic. Stroom accepts data in JSON format and can output to JSON.