What JSON format is required?

The input must be a valid JSON array of objects, e.g. [{"name":"Alice","age":30},{"name":"Bob","age":25}]. All objects should share similar keys.

How does nested object handling work?

Nested objects can be flattened using dot notation (e.g., address.city) or displayed as a compact JSON string in a single cell.

Can I transpose the table?

Yes! The transpose button swaps rows and columns, turning column headers into row labels and vice versa.

How do I export to CSV?

Click the 'Download CSV' button after converting. The CSV uses the same column structure as the generated table.

Does it handle missing keys?

Yes. If some objects are missing certain keys, those cells will appear empty in the table.

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JSON to HTML Table Converter

Convert JSON arrays into formatted HTML tables with sorting, zebra striping, and CSV export.

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このツールについて

The JSON to HTML Table Converter turns any JSON array of objects into a clean, formatted HTML table instantly. Paste your JSON data, customize the output with options like header rows, zebra striping, sorting arrows, and border styles, then copy the generated HTML or preview it directly. Supports transposing the table (swap rows and columns), downloading data as a CSV file, and handling nested objects by flattening with dot notation or displaying as JSON strings. Ideal for developers building reports, dashboards, or documentation.

使い方

1 Paste your JSON array of objects into the input area.
2 Configure options: header row, zebra striping, sorting, borders, nested handling.
3 Preview the rendered table on the right.
4 Click 'Copy HTML' to copy the table code, or 'Download CSV' for spreadsheet use.
5 Use 'Transpose' to flip rows and columns if needed.

このツールについて

使い方

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