1) Input CSV
2) Output JSON
Tip: Validate by pasting into your tool.
Schema notes
Auto JSON: If you check "First row is header", the converter uses those names for object keys. Otherwise, it creates objects with keys col1, col2, …
Flashcards: Expects 2 columns. If there are headers, it tries to detect question/answer by name; otherwise it maps column 1 → question, column 2 → answer.