Convert JSON files to CSV format online free. Flatten nested JSON arrays and objects into clean, structured CSV tables. Perfect for Excel, Google Sheets, and data analysis. Batch process multiple JSON files, no signup, secure.
Follow these easy steps to flatten your JSON data into CSV format:
Click the upload area or drag and drop one or more .json files. The tool accepts arrays of objects or single objects.
Nested objects and arrays are flattened into columns using dot notation (e.g., user.name).
Press the Convert to CSV button to start processing. Each JSON file generates a separate CSV file.
Download your converted CSV files instantly. All uploaded JSON files are securely deleted after processing.
Pro Tip: For best results, ensure your JSON is an array of objects. If it's a single object, it will be converted to a single-row CSV. Deeply nested structures produce wide tables with dot-notation headers.
Our JSON to CSV converter transforms complex JSON data into simple, tabular CSV format — perfect for spreadsheet software like Excel, Google Sheets, and data analysis tools. Ideal for developers, data analysts, and anyone working with API responses or log files.
We use intelligent flattening to ensure your data becomes clean, tabular CSV:
| Array of objects: Each object becomes a row, keys become columns | Nested objects: Flattened with dot notation (e.g., address.city) |
| Arrays of primitives: Converted to comma-separated values in a single cell | Batch processing: Multiple files converted simultaneously |
| Secure transfer: HTTPS encryption throughout | Auto-delete: Files removed after 1 hour |
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Convert your JSON data into clean, well-structured CSV files. Whether you're dealing with API responses, configuration files, or data exports, this tool makes data analysis easy.