Can I also convert a CSV file to JSON?

Yes, the converter works in both directions: you can convert a JSON array to CSV and CSV to JSON. The direction is determined automatically based on the type of file you upload.

Which delimiter options can I use?

You can choose one of the comma (,), semicolon (;), tab and pipe (|) delimiters. The delimiter you choose is used as the separator in the generated output.

How are nested objects handled during conversion?

When the flatten nested objects option is on, sub-fields are reduced to a single level by combining them with a dot; for example, the structure { a: { b: 1 } } is gathered under the header "a.b". If this option is off, nested values are left as they are.

When I convert from CSV to JSON, do numbers remain as numbers?

No, numbers and true/false values remain as text in the JSON output. Each row is converted into a JSON object that uses the header names as keys.

What structure does the JSON I upload need to have?

You need to upload a JSON containing an array of objects as input. Each object in the array corresponds to one row in the CSV output; the accepted file types are .json, .csv and .txt.

JSON to CSV Converter

Delimiter:

Flatten nested objects

JSON Input

or drop a .json/.csv file here (mode switches automatically)

CSV Output

3 rows × 3 cols

name,age,city
Alice,30,Istanbul
Bob,25,Ankara
Charlie,35,Izmir

💡 Input must be a JSON array of objects. Nested objects are serialized as JSON strings unless "Flatten" is enabled.

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📖 How to Use

Upload document

Drag-drop or pick file.

Set options

Choose operation and parameters.

Process

Server runs the task.

Download

Get result in your format.

Frequently asked questions

No, headers are derived directly from the JSON keys; there is no interface for renaming.

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JSON ↔ CSV Converter