JSON to CSV Converter

Transform complex JSON data into clean, readable CSV files. Perfect for data analysis, spreadsheets, and database imports.

Drop JSON files here or click to upload

Processed locally (Privacy Guaranteed)

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About JSON to CSV

JSON is the standard format for web APIs, but it is often difficult to read or analyze without technical tools. CSV files are universally compatible with Excel, Google Sheets, and data visualization software. Our converter bridges this gap by flattening hierarchical JSON data into a two-dimensional table.

Using Client-Side Rendering (CSR), your browser handles the parsing logic. No data is sent to a server, making this tool ideal for developers and data analysts working with sensitive information or large datasets.

How to Convert JSON to CSV

  1. Upload JSON: Drag your .json files into the tool or click to browse.
  2. Verify: Ensure your files appear in the preview list. You can batch-process multiple JSON objects.
  3. Flatten: Click "CONVERT TO CSV". The tool will identify keys and map them to columns.
  4. Download: Your CSV file will be generated and downloaded to your device instantly.

Frequently Asked Questions

Does it handle nested objects?

Yes. The tool automatically flattens nested JSON objects using dot notation (e.g., user.address.city) to ensure all data is captured in the CSV rows.

Is there a limit to the file size?

The tool can handle large JSON files up to the limit of your browser's RAM (usually several hundred MBs). Processing occurs locally for maximum speed.

What if my JSON is not an array?

If you upload a single object, the tool will treat it as a one-row CSV. For best results, ensure your JSON is an array of similar objects.

Is my data uploaded to any server?

No. All processing happens on your local machine. We never see or store your JSON data.