JSON to CSV Converter

Turn API responses and JSON exports into a spreadsheet you can open in Excel or Google Sheets. Nested fields become their own columns, and you can preview the table before downloading.

  • 100% free
  • No sign-up
  • Data never leaves your browser
How to use

How to use the JSON to CSV Converter

  1. Paste a JSON array of objects, or an object containing one.
  2. Choose the delimiter; semicolons suit Excel in many European locales.
  3. Check the preview table.
  4. Download the CSV or copy it.

Private by design. Your code and data are processed in your browser. Nothing is uploaded, logged or stored, so it is safe for API responses, configs and other internal data.

About this tool

How nested JSON becomes columns

Spreadsheets are flat, but JSON often is not. With flattening on, a nested field such as contact.email becomes its own column called contact.email. Simple lists are joined with semicolons in one cell, and complex lists of objects are kept as JSON text so no data is lost.

Columns are collected from every row, so objects with different fields still line up correctly, and missing values are left blank. The Excel-friendly option adds an invisible marker that tells Excel the file is UTF-8, so names with accents or Urdu text display correctly.

Good to know

Conversion tips

Use the right delimiter

If Excel shows everything in one column, try semicolons.

Keep it Excel-friendly

Leave the UTF-8 BOM option on for non-English text.

Validate first

If conversion fails, check the JSON in our formatter.

Large exports

The preview shows 50 rows, but every row is included in the file.

FAQ

JSON to CSV Converter FAQs

Can I convert nested JSON?

Yes. Nested objects become dot-notation columns such as address.city.

What if my JSON is an object, not an array?

The converter looks for the first array inside it, or treats the object as a single row.

Will Excel open the file?

Yes. CSV files open directly in Excel, Google Sheets and Numbers.

Is my data uploaded?

No. Conversion happens in your browser.

Need extra development capacity?

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