Free Online JSON to CSV Converter

Convert JSON to CSV and CSV to JSON. Nested flattening, column selection. All in your browser.

✓ No uploads ✓ No sign-ups ✓ 100% private ✓ Works offline
Drop JSON/CSV file here

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How to Convert JSON to CSV

Follow these simple steps to use the free online json to csv converter tool:

  1. Paste or upload JSON - Drop a JSON file or paste raw JSON into the editor.
  2. Flatten nested data - Nested objects are flattened into columns automatically, so arrays and deep structures become tabular.
  3. Select columns - Choose which fields to include in the output and set the delimiter.
  4. Preview and export - Check the live preview, then download the CSV or copy it to your clipboard.

Features

  • Convert JSON to CSV and CSV back to JSON
  • Automatic flattening of nested JSON objects
  • Column selection and custom delimiters
  • Live preview before export
  • Handles arrays of objects and large datasets

Why Choose This Tool?

Moving data between APIs (JSON) and spreadsheets (CSV) is a constant chore. Our converter flattens nested JSON automatically, lets you pick your columns, and produces clean CSV you can open in Excel or Google Sheets — all locally in your browser.

Frequently Asked Questions

How do I convert JSON to CSV?

Paste your JSON or drop a file, and the tool converts it to a table. Nested objects are flattened into columns automatically.

Can I convert CSV back to JSON?

Yes, the reverse conversion is built in. Load a CSV and it produces valid JSON with your chosen structure.

Is my data uploaded to a server?

No, all conversion happens locally in your browser. Your data never leaves your device.

Does it handle nested JSON?

Yes, nested objects and arrays are flattened into columns so the data fits a spreadsheet format.

Can I choose which columns to export?

Yes, you can select the specific fields to include and choose the delimiter (comma, semicolon, tab, pipe).

Can I use this in Excel or Google Sheets?

Absolutely. The exported CSV opens directly in Excel, Google Sheets, and any other spreadsheet application.

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