Pandia is a free, open-source JSON workbench that also handles YAML, XML, and CSV. It offers multiple views and can generate types or schemas. The developer says files stay local rather than being uploaded to a service.
That makes it a promising way to inspect a 150 KB Wake Up package, compare two editions, and find missing nested fields without wading through raw text. Action: open a copy of a processed package and compare its tree and diff views with the current editor.
