Converting JSON to CSV: How to Flatten Nested Objects & Arrays for Excel

The Relational vs Document Model Conflict

Modern APIs speak JSON (hierarchical, nested dictionaries and arrays), while business stakeholders and analysts speak CSV / Excel (flat, two-dimensional tabular rows and columns).

When converting an object like:

{
  "orderId": "ORD-921",
  "customer": { "name": "Aarav", "city": "Bengaluru" },
  "items": [ { "sku": "A1", "price": 40 } ]
}

A naive converter fails to represent the nested customer sub-object or the repeating items array.

How Dot-Notation Flattening Solves This

The JSON to CSV Converter on Tools24Now recursively traverses nested object graphs, creating clean dot-delimited column headers:

• orderId
• customer.name
• customer.city
• items[0].sku

Convert your developer payloads with the JSON to CSV Converter on Tools24Now.