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Avinash Verma
Avinash Verma

Posted on • Originally published at jsonviewertool.com

Convert JSON to CSV Easily - A Complete Guide for Developers

#json #tutorial #programming #webdev

Need JSON data in Excel or Google Sheets? Learn how to convert JSON to CSV safely and quickly using JSONViewerTool.com.

Why convert JSON to CSV?

CSV (Comma-Separated Values) is a simple tabular format supported by Excel, Google Sheets and almost every BI tool. When you receive JSON from an API but need to analyse it in a spreadsheet, converting JSON to CSV is the easiest workflow.

  • Business users understand rows and columns.
  • CSV is compatible with spreadsheets and BI dashboards.
  • JSON can be complex to analyse directly without tooling.

Flat JSON vs nested JSON

Before converting, it helps to understand the shape of your JSON.

  • Flat JSON - each object has only simple key-value pairs.
  • Nested JSON - objects contain other objects or arrays. 
[
  { "id": 1, "name": "Avi", "country": "IN" },
  { "id": 2, "name": "Kriti", "country": "US" }
]
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The above is flat JSON - perfect for CSV. Each property becomes a column.

How JSONViewerTool converts JSON to CSV

JSONViewerTool.com has a dedicated JSON -> CSV Converter page that handles common cases automatically.

  1. Go to JSON -> CSV Converter.
  2. Paste or upload your JSON on the left side.
  3. Click Convert JSON -> CSV.
  4. View the generated CSV table on the right.
  5. Copy the CSV or download it as a .csv file.

Handling nested objects and arrays

Nested objects and arrays need to be flattened to fit neatly into rows and columns. There are several strategies:

  • Use dot notation for nested keys (e.g. address.city).
  • Join arrays into a comma-separated string.
  • Explode arrays into multiple rows when each item is its own record.

Tips for clean CSV output

  • Validate your JSON before converting.
  • Ensure consistent keys across all objects.
  • Remove irrelevant or extremely nested fields.

Next steps

Ready to try it? Open the JSON -> CSV Converter, paste some real API JSON, and export it to a CSV file for analysis. If you ever need to go in the opposite direction, use the CSV -> JSON Converter.

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