Converter

CSV ↔ JSON ↔ Excel

Nested / multidimensional values are preserved as JSON-in-cell or flattened into dotted keys. Preview + copy + download included. Sample data is optional (not default).

Excel: Optional

Input

Paste text or drop a file (.csv/.json/.xlsx).

Input format

Output format

Nested handling

JSON output nesting

Excel sheet

Preview rows

CSV separator

Used for CSV input parsing and CSV output export.

Custom separator

Drop file here or click to choose

Supported: .csv, .json, .xlsx

Input text

Output

Click nested cells in preview to expand.

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Convert something to see a preview.