JSON to CSV Converter
Paste a JSON array of objects to convert it to CSV. Auto-detects all columns across all objects. All processing happens in your browser — no data is uploaded.
CSV output will appear here...Why Convert JSON to CSV?
JSON is the standard format for APIs and web services. CSV (Comma-Separated Values) is the universal format for spreadsheets — Excel, Google Sheets, and virtually every data analysis tool reads CSV natively. Converting between them is a daily task for developers, data analysts, and anyone working with API data.
Common Use Cases
Analyzing API Data in Spreadsheets
Export user lists, order data, analytics results, or any JSON API response to CSV for analysis in Excel or Google Sheets — without writing any code.
Preparing Data for Import
CRM systems, email marketing tools, and database import wizards accept CSV but not JSON. Convert your API data to CSV for direct import.
Sharing Data with Non-Technical Stakeholders
Business teams work in spreadsheets, not JSON. Convert your database export or API response to CSV for sharing with managers, clients, or finance teams.
What JSON Format Does the Converter Accept?
The converter expects a JSON array of objects — the standard output format of most REST APIs. Each object in the array becomes one row in the CSV, and all unique keys across all objects become column headers.
[
{ "id": 1, "name": "Alice", "email": "alice@example.com" },
{ "id": 2, "name": "Bob", "email": "bob@example.com" }
]The above JSON converts to a CSV with columns id, name, and email, with two data rows.
How Nested Objects Are Handled
Nested JSON objects are flattened using dot notation. A field like { "user": { "name": "Ram", "city": "Hyderabad" } } produces columns user.name and user.city. Arrays within objects are serialized as comma-separated strings. This handles the majority of real-world API response shapes.
How to Use This JSON to CSV Converter
- Paste your JSON array into the input box
- The tool auto-detects all columns from every object in the array
- Click Convert to generate the CSV
- Click Download CSV to save the file, or Copy to copy the output
All processing happens in your browser. No data is ever sent to a server — this is especially important when working with production database exports or user data containing PII.
JSON vs CSV: When to Use Each
| Format | Best For | Not Ideal For |
|---|---|---|
| JSON | APIs, nested data, config | Spreadsheet analysis |
| CSV | Spreadsheets, data import, reports | Nested/hierarchical data |
Frequently Asked Questions
What JSON format does this converter accept?
The converter accepts a JSON array of objects — the most common API response format. Each object in the array becomes one row in the CSV. All unique keys across all objects become column headers.
What happens to nested JSON objects?
Nested objects are flattened — a key like {user: {name: 'Ram'}} becomes a column header 'user.name' with value 'Ram'. Arrays within objects are converted to a comma-separated string.
Can I convert CSV back to JSON?
This tool converts JSON to CSV. For CSV to JSON conversion, you can use a spreadsheet tool (Excel, Google Sheets) to import CSV and export as JSON, or use a dedicated CSV-to-JSON converter.
Is there a row limit for JSON to CSV conversion?
No limit is enforced. Since everything runs in your browser, the practical limit is your device memory. Arrays with tens of thousands of objects convert without issue on modern hardware.
Will my data be sent to any server?
No. All conversion happens in your browser using JavaScript. Your JSON data is never transmitted, logged, or stored anywhere.