JSON to CSV Converter

Convert a JSON array of objects into a downloadable CSV spreadsheet.

100% Free · No Sign-up · Runs in Your Browser

About the JSON to CSV Converter

The JSON to CSV converter transforms an array of JSON objects into a comma-separated values (CSV) file that opens cleanly in Excel, Google Sheets, or any spreadsheet software. APIs almost always return data as JSON, but analysts, marketers and business teams typically want that same data inside a spreadsheet for filtering, pivot tables and reporting. This tool bridges that gap instantly, without needing a script or a database.

It is especially useful for developers exporting API results for non-technical teammates, data analysts converting logs or exports into tabular form, and e-commerce or SaaS operators exporting product or user lists. Since the conversion runs entirely client-side using a robust CSV engine, you can paste real customer or business data without it ever touching a server.

To use it, paste a JSON array of objects into the input box (for example, a list of user records or product rows), or upload a .json file. Click "Convert to CSV" and the tool automatically detects every unique key across your objects to build proper column headers, filling missing fields with empty cells. You can then copy the CSV text directly or click Download to save a ready-to-open .csv file.

For example, [{"name":"Ana","city":"Cairo"},{"name":"Sam","city":"Dubai","vip":true}] becomes a CSV with columns name, city, vip — where Ana's vip cell is simply left blank. This handles real-world messy data where not every record shares identical fields, which is one of the most common headaches when converting JSON manually.

A frequent mistake is pasting a single JSON object instead of an array — remember the converter expects a list of records like [ {...}, {...} ]. If you only have one object, wrap it in square brackets first. Another common issue is deeply nested objects or arrays inside a field; these are automatically flattened to a JSON string within that cell so no data is lost, though for full normalization you may want to restructure nested data before exporting.

Tips: always double check special characters like commas and quotes inside text fields — this tool properly escapes them per the CSV standard (RFC 4180) so your spreadsheet software reads them correctly instead of splitting a single value across multiple columns. If your data uses non-English characters (Arabic, Chinese, accented Latin letters), the downloaded file is UTF-8 encoded, which every modern spreadsheet application supports.

Frequently Asked Questions

Q.What JSON format does it expect?

An array of objects, like [{"a":1},{"a":2}]. If you have a single object, wrap it in square brackets.

Q.What happens with nested objects or arrays?

Nested values are converted to their JSON string form inside the cell so no information is lost, since CSV itself cannot represent nested structures.

Q.Will columns stay in the same order?

Columns are generated from the keys found across all objects, in the order they first appear.

Q.Does it handle missing fields?

Yes. If an object is missing a key that other objects have, that cell is simply left empty in the CSV.

Q.Can I open the result directly in Excel?

Yes, the downloaded .csv file uses standard comma delimiters and UTF-8 encoding, compatible with Excel, Google Sheets and Numbers.

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