YAML Tools
YAML Converter
Oxygen provides a tool for converting a YAML instance to corresponding valid JSON data and another tool for converting JSON instance to YAML data. An add-on is also available that gives you the ability to convert multiple files at once.
YAML to JSON
Oxygen includes a useful and simple tool for converting YAML files to JSON. The YAML to JSON action opens a very simple dialog box where you specify the URL of the input YAML file and the location for the resulting JSON file.
JSON to YAML
Oxygen also includes a tool for converting JSON files to YAML. This type of conversion is created using a similar dialog box, but in this case, you specify the URL of a JSON file for the input and it results in a converted YAML file.
Batch Conversions
An add-on is also available from Oxygen's default update site that provides the ability to convert multiple YAML files to JSON or vice versa.
For more information, go to: https://www.oxygenxml.com/doc/ug-editor/topics/batch-converter-addon.html.