JSON to CSV Converter
Convert JSON arrays of objects into clean, properly escaped CSV files instantly with this free online converter. Handles nested objects by flattening them into dot-notation column headers, supports custom delimiters (comma, semicolon, tab), and generates downloadable CSV files ready for Excel, Google Sheets, or any data analysis tool. Perfect for developers, data analysts, and anyone who needs to export structured JSON data into spreadsheet format. All conversion happens entirely in your browser — your data never leaves your device.
What is JSON to CSV Conversion?
JSON to CSV conversion transforms JavaScript Object Notation (JSON) data into Comma-Separated Values (CSV) format. JSON stores data as nested objects and arrays with key-value pairs, while CSV stores data as a flat table with rows and columns. The conversion maps JSON object keys to CSV column headers and JSON array elements to CSV rows, creating a tabular representation of structured data.
CSV is the universal format for spreadsheet applications like Microsoft Excel and Google Sheets. Converting JSON to CSV enables data analysts to import API responses into spreadsheets, create charts, and perform analysis using familiar tools. The conversion handles nested objects by flattening them into dot-notation column names (e.g., address.city becomes a column header).
When Should You Convert JSON to CSV?
JSON to CSV conversion is essential when you need to analyze JSON data in spreadsheet tools. API responses containing structured JSON data need conversion for business analysis. Database exports in JSON format need conversion for reporting. Log data in JSON format needs conversion for analysis in Excel.
Data analysts converting API response data for analysis. Business users importing JSON data exports into spreadsheets. Developers creating data migration scripts. Researchers converting JSON datasets for statistical analysis. Anyone who needs to work with JSON data in spreadsheet applications benefits from this conversion.
How It Works
The converter parses the JSON array of objects, extracts all unique keys across all objects to create column headers, and maps each object's values to the corresponding columns. Nested objects are flattened using dot notation. Empty values are handled as empty CSV cells. The output is properly escaped CSV with quoted fields containing commas or quotes. The tool supports comma, semicolon, and tab delimiters.
Tips for Best Results
Ensure your JSON is a well-formed array of objects with consistent structure. If objects have different keys, columns will be created for all keys with empty values where data is missing. For large datasets, export to CSV file rather than copying to clipboard. Verify the CSV opens correctly in your target spreadsheet application, as some tools have specific CSV format expectations.
Features
How to Use
Paste your JSON array of objects into the input area
Select your preferred delimiter (comma, semicolon, or tab)
Preview the generated CSV table with column headers
Click download to save the CSV file to your device
Frequently Asked Questions
What JSON format is required?
How are nested objects handled?
Is my data sent to a server?
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