Convert a JSON array of objects into CSV data, automatically building a header row from all the keys used across your objects.
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This tool expects a JSON array of flat objects (like [{"name":"Alice","age":30}, ...]). It collects every key used across all objects to build the header row, then writes one CSV row per object, quoting any value that contains the delimiter, a quote character, or a line break.
If some objects are missing a field that others have, the resulting CSV cell for that row and column is simply left blank, the header row always includes every key seen across the full array.
Yes, the input must be a JSON array of objects. A single object or a nested structure would need to be restructured into a flat array first.
They're converted to their JSON string representation in the CSV cell, since CSV itself has no concept of nested structure.
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