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, no upload required.

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.