[
{
"name": "John",
"address": {"street": "123 Main St", "city": "New York"},
"tags": ["developer", "javascript"]
}
]
Converts to CSV (with flattening):
name,address.street,address.city,tags
John,123 Main St,New York,"[""developer"",""javascript""]"
How to Convert JSON to CSV Online - Step by Step Guide
Choose Input Method: Select whether to upload JSON files or paste JSON data directly into the text area.
Upload or Paste JSON: Either upload your JSON files or paste your JSON data into the provided text area.
Configure Conversion Options: Choose CSV delimiter, nested object handling, array processing, and other formatting preferences.
Preview Results: Review the CSV preview to ensure the conversion meets your requirements.
Download CSV: Click the download button to save your converted CSV file to your computer.
Pro Tip: For complex JSON with nested objects, use the "Flatten nested objects" option to create separate CSV columns for each nested property using dot notation (e.g., "address.street", "address.city").
Why Convert JSON to CSV?
Database Integration
Many databases and data analysis tools prefer CSV format for data import. Converting JSON to CSV makes your data compatible with SQL databases, business intelligence tools, and data visualization platforms.
Spreadsheet Analysis
CSV files can be easily opened in Excel, Google Sheets, and other spreadsheet applications, allowing for quick data analysis, filtering, and manipulation using familiar tools.
Data Processing Pipelines
CSV is a standard format in data processing workflows. Converting JSON to CSV enables integration with ETL processes, data warehouses, and automated data pipelines.
Reporting and Visualization
Many reporting tools and data visualization platforms work better with tabular CSV data than hierarchical JSON structures, making CSV ideal for creating reports and charts.
Frequently Asked Questions - JSON to CSV Converter
How does the converter handle nested JSON objects?
The converter offers multiple options: flatten nested objects using dot notation (address.street), convert them to JSON strings, or ignore them entirely. Choose the option that best fits your data analysis needs.
What happens to JSON arrays during conversion?
Arrays can be handled in several ways: converted to JSON strings, joined with commas, use only the first element, or ignored. This flexibility allows you to handle complex JSON structures appropriately.
Can I convert both JSON files and pasted JSON data?
Yes! The converter supports both methods. You can upload JSON files from your computer or paste JSON data directly into the text area. Both methods offer the same conversion options.
How are null and undefined values handled?
By default, null and undefined values are converted to empty strings in the CSV output. You can disable this option if you prefer to keep "null" as text in your CSV file.
What if my JSON structure is inconsistent?
The converter handles inconsistent JSON structures by creating columns for all unique keys found across all objects. Missing values are filled with empty strings or null values as specified in your settings.
Can I preview the CSV before downloading?
Yes! The converter shows a preview of the first 5 rows of your converted CSV data, allowing you to verify the structure and formatting before downloading the full file.
What's the maximum JSON file size I can convert?
You can convert JSON files up to 10MB each. For very large JSON files, consider breaking them into smaller chunks or use the paste method for better performance.
Is my JSON data secure during conversion?
Absolutely! All JSON processing happens entirely in your browser. Your data never leaves your device and is not sent to any servers, ensuring complete privacy and security.