CSV ↔ JSON Converter

Convert CSV to JSON (an array of objects or of arrays) or JSON to CSV, reusing the same safe CSV parser already used in Performance Center (quotes, delimiters, line breaks inside fields, BOM). Type inference is off by default. When exporting to CSV, it automatically neutralizes cells starting with =, +, -, @ to prevent formula injection in Excel/Sheets.

Processed on your device, no AIhasta 20.000 filas, 200 columnas

CSV input

Drag a file here, or

Processed locally.

Delimiter

JSON shape

First row is headersTrim whitespaceInfer types (numbers/booleans)

The data is processed on your device and is never sent to the server.

Use cases

Convert a CSV export to JSON for an API
Convert a JSON array to CSV to open in a spreadsheet
Flatten nested objects before exporting to CSV

How to use this tool

Paste or upload the CSV or JSON
Adjust the delimiter, headers, and options
Copy or download the result

Frequently asked questions

Does it protect against malicious formulas in the exported CSV?

Yes. Any cell starting with =, +, -, @ (or a tab/carriage return) is prefixed with a single quote so spreadsheet apps like Excel or Sheets never interpret it as a formula.

Does it guess each value's type automatically?

Not by default. Type inference (numbers, booleans) is off by default; you can turn it on explicitly.

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