JSON To CSV

What is JSON to CSV Conversion?

JSON (JavaScript Object Notation) is a structured format commonly used in APIs and databases. CSV (Comma-Separated Values) is a flat, tabular format widely supported by spreadsheets and data tools.

Converting JSON to CSV allows:

• Flattening nested structures for easier viewing

• Importing into Excel, Google Sheets, Airtable, etc.

• Formatting REST API results for reports or analysis

Examples

Example 1: Simple JSON Array

JSON input:

[
  {"name": "Alice", "age": 30},
  {"name": "Bob", "age": 25}
]

CSV output:

name,age
Alice,30
Bob,25

Example 2: JSON with Nested Values

JSON input:

[
  {"id": 1, "user": {"name": "Alice", "email": "alice@example.com"}},
  {"id": 2, "user": {"name": "Bob", "email": "bob@example.com"}}
]

CSV output:

id,user.name,user.email
1,Alice,alice@example.com
2,Bob,bob@example.com

Example 3: JSON with Optional Fields

JSON input:

[
  {"name": "Alice", "age": 30},
  {"name": "Bob"}
]

CSV output:

name,age
Alice,30
Bob,

Pro Tips

• Use consistent keys in all objects for clean headers.

• Nested properties are flattened using dot notation (e.g., user.name).

• JSON arrays of objects are required—single objects should be wrapped in [].

• To handle hierarchical data better, consider converting to JSON to YAML.

• Need to visualize the CSV? Open it directly in Excel or import it into tools like Airtable or Notion.

Use Cases

• Reporting: Convert JSON logs, responses, or API payloads into CSV for dashboards.

• Data Migration: Move JSON data into Excel, SQL databases, or CRM tools.

• Testing APIs: Copy API output into JSON and convert to CSV for quick debugging.

• Spreadsheet Automation: Prepare CSVs for mail merges, bulk edits, or uploads to platforms.