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Data conversion tool

JSON to CSV Converter & Nested JSON Flattener

Paste nested JSON, preview exactly how object keys become CSV columns, flatten nested structures and download the result without uploading your data.

JSON input

Flattened CSV

name,address.city,address.zip,skills
Alice,Boston,02108,"[""Excel"",""SQL""]"
Bob,Austin,78701,"[""Python"",""JSON""]"

Table preview

nameaddress.cityaddress.zipskills
AliceBoston02108["Excel","SQL"]
BobAustin78701["Python","JSON"]

How Nested JSON Is Flattened

Nested objects are converted into flat column names. For example, an address object containing city and ZIP fields can become address.city and address.zip columns.

JSON Arrays in CSV

Because CSV is tabular while JSON can contain arrays and nested objects, the tool lets you preserve arrays as JSON text or join their values into one cell.

Local Browser Processing

Your JSON is parsed and converted directly in the browser. It is not sent to Navorika for processing.

Frequently Asked Questions

Can this convert nested JSON to CSV?

Yes. Nested object keys are flattened into column names such as address.city or address_city.

What happens to JSON arrays?

Arrays can either be preserved as JSON text inside a CSV cell or joined into a readable string.

Is my JSON uploaded?

No. Parsing, flattening, previewing and CSV generation happen locally in your browser.

Can I download the converted CSV?

Yes. The complete converted dataset can be downloaded as a CSV file.