What JSON structure does this support?

This tool works best with JSON arrays of objects — the most common format for tabular data, e.g. [{"name":"Alice","age":30}]. Each object becomes a row and keys become column headers.

Can it handle nested JSON objects?

Lightly nested objects are flattened using dot notation (e.g. address.city becomes a column). Deeply nested or array-valued properties are serialized as strings. For complex nesting, you may want to pre-process the JSON first.

When should I use a semicolon or tab delimiter?

Use semicolons if your data contains commas (e.g. addresses or descriptions). Use tab-separated values (TSV) for pasting directly into Excel or Google Sheets, as both automatically detect tab separation.

How do I open the CSV in Excel?

Double-click the downloaded .csv file to open it in Excel directly. If columns are not splitting correctly, use Data > Text to Columns and choose Delimited > Comma.

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JSON to CSV Converter

Convert JSON arrays to CSV instantly. Table preview, custom delimiter, handles nested objects. Free JSON to CSV converter — no uploads, no sign-up.

About This Tool

Convert JSON arrays to CSV format instantly with a live table preview. Supports flat and lightly nested JSON, custom delimiters, and downloads the CSV file directly.