I have tried out using YAML schema (issue #778) with the newest version of jsonschema2pojo, and it seems to work perfect. Thanks! :-) However, the tools for generating Java code is not supporting YAML Schema in version 0.5.0 and 0.5.1. It would be cool, if the Maven, Gradle, and Ant tool support YAML schema as well. Personally, I use the Maven plugin to generate POJOs from .json files, but should love you use .yaml / .yml files instead.