
JSON to CSV Converter
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Privacy Promise
Your content never leaves your browser. All processing happens locally on your device using JavaScript. We do not store, record, or transmit your input data to any server.
Convert JSON data to CSV format instantly. Support for nested objects, large files, and bidirectional conversion.
50-60% Smaller Files
CSV removes redundant field names
Key Features
Reduce File Size
CSV files are typically 50-60% smaller than equivalent JSON. Perfect for reducing bandwidth costs and speeding up data transfers.
Flatten Objects
Automatically flattens nested JSON objects into CSV columns using dot notation. Makes complex API responses spreadsheet-ready.
Bidirectional Conversion
Convert JSON to CSV and CSV back to JSON. Switch between formats seamlessly for different use cases and applications.
100% Client-Side
All conversion happens in your browser. Your data never leaves your device, ensuring complete privacy and security.
Frequently Asked Questions
How does JSON to CSV conversion work?▼
Will my data be uploaded to servers?▼
Can I convert CSV back to JSON?▼
What happens to nested JSON objects?▼
{"user": {"name": "John"}} becomes a column named 'user.name'. This makes complex JSON data spreadsheet-ready.Why is CSV file size smaller than JSON?▼
What is JSON to CSV conversion?
JSON (JavaScript Object Notation) is a popular data format for APIs and web services, while CSV (Comma Separated Values) is widely used for spreadsheets and data analysis. Converting JSON to CSV simplifies complex data structures into rows and columns, making it easy to open in Excel, Google Sheets, or import into databases.
File Size Advantage: CSV files are typically 50-60% smaller than their JSON equivalents. JSON repeats field names for every record, while CSV lists headers once. For example, a 0.27 KB JSON file becomes just 0.12 KB as CSV - perfect for reducing bandwidth and storage costs.