In-depth JSON is the "knowledge" part of the free, online JSON editor https://jsoneditoronline.org. It offers in-depth articles learning you more about editing and processing JSON data. It is written by Jos de Jong, a senior full-stack software engineer with 20+ years of experience in the field. He knows all the ins and outs of using JSON in the frontend, backend, and databases. The editor https://jsoneditoronline.org was born out of personal needs as a developer working with JSON data on a daily basis.