JSON to CSV Converter - Convert JSON to CSV Online

Delimiter

About JSON to CSV Converter

JSON to CSV Converter is a powerful online tool that transforms JSON data into CSV (Comma-Separated Values) format. Perfect for data analysis, spreadsheet imports, and database migrations. The converter handles nested objects, arrays, and complex data structures automatically.

Features

Convert JSON arrays to CSV instantly
Support for nested objects (flattened with dot notation)
Handle arrays within objects
Multiple delimiter options (comma, semicolon, tab, pipe)
Automatic CSV escaping for special characters
One-click copy to clipboard
Download as CSV file
Character and line count
Load example data
100% browser-based (no server uploads)

How to Use

Paste your JSON array in the input box
Select your preferred delimiter
Click "Convert to CSV"
Copy the CSV or download as a file
Import into Excel, Google Sheets, or databases

JSON Format Requirements

Array of Objects:

JSON must be an array of objects. Each object represents a row in the CSV.

[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]

Nested Objects:

Nested objects are flattened using dot notation (e.g., address.city).

{"user": {"name": "John", "address": {"city": "NYC"}}}
→ user.name, user.address.city

Arrays:

Arrays within objects are converted to JSON strings in the CSV.

{"tags": ["javascript", "react"]}
→ tags: '["javascript","react"]'

Delimiter Options

Comma (,):

Standard CSV format. Most widely supported by spreadsheet applications.

Semicolon (;):

Common in European locales where comma is used as decimal separator.

Tab:

Tab-separated values (TSV). Good for data with many commas.

Pipe (|):

Alternative delimiter when data contains commas and semicolons.

Use Cases

Data Analysis: Import JSON data into Excel or Google Sheets
Database Import: Convert API responses for database insertion
Reporting: Create CSV reports from JSON data
Data Migration: Transfer data between systems
Backup: Export JSON data as CSV for backup
Integration: Connect JSON APIs with CSV-based tools

Example Conversion

Input JSON:

[
  {"id": 1, "name": "John", "email": "john@example.com"},
  {"id": 2, "name": "Jane", "email": "jane@example.com"}
]

Output CSV:

id,name,email
1,John,john@example.com
2,Jane,jane@example.com

Best Practices

Ensure JSON is properly formatted before conversion
Use consistent object structures in your JSON array
Choose appropriate delimiter based on your data content
Test with small datasets first
Validate CSV output before importing to databases
Handle nested data carefully - consider flattening manually

Privacy & Security

All JSON to CSV conversion happens locally in your browser. Your data is never sent to our servers or any third-party services. This ensures complete privacy and security for your sensitive data.