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Frequently Asked Questions
Will 123 or true become real JSON numbers and booleans?
No. This converter keeps CSV cell values as strings, so typing 123 or true still produces JSON strings unless you post-process them later.
What does "Keyed object (first column as key)" do?
It uses column 1 as the object key and stores the whole row under that key. If the first-column value repeats, the later row overwrites the earlier one.
How does delimiter auto-detection work?
It samples the first five lines and picks the delimiter that creates the most splits among comma, semicolon, tab, and pipe.
Can I convert CSV that has no header row?
Yes. Turn off Has headers and the tool will generate column_1, column_2, and so on.
What is the difference between array-of-objects and array-of-arrays output?
Array-of-objects maps headers to values for each row. Array-of-arrays keeps the raw row structure, and if headers are enabled it includes the header row as the first array.