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JSON to CSV Converter

Paste a JSON array and convert it to a comma-separated CSV file - nested objects are flattened using dot notation. Download instantly.

JSON Input
CSV Output

JSON to CSV Converter Convert JSON Arrays Online

JSON (JavaScript Object Notation) and CSV (Comma-Separated Values) are two of the most widely used data formats in modern computing. JSON, introduced with Douglas Crockford's specification in 2001 and formalised as RFC 7159 in 2014, is the dominant format for web APIs and configuration files. CSV, with origins dating back to early 1970s mainframe data exchange, remains the most compatible format for spreadsheet applications like Microsoft Excel, Google Sheets, and LibreOffice Calc. Converting between the two is a daily task in data engineering and business analytics workflows.

When JSON to CSV Conversion Is Needed

Developers and data analysts frequently receive API responses in JSON format that must be imported into Excel or a relational database. E-commerce platforms, government data portals like data.gov.in, and GSTN (GST Network) APIs all return data in JSON. Business stakeholders typically prefer CSV or Excel for analysis, requiring conversion before sharing. This tool handles JSON arrays of objects (the most common API response format) and flattens nested objects into column-separated values, making the output directly importable into any spreadsheet application.

Data Work in Indian Organisations

India's rapidly growing data analytics industry - projected to reach $16 billion by 2025 - employs hundreds of thousands of data professionals who work with JSON and CSV daily. Government data portals like Open Government Data (OGD) Platform India publish datasets in both JSON and CSV. Fintech companies processing UPI transaction logs, IRCTC booking data exports, and SEBI filing systems all involve format conversion. This browser-based tool processes all data locally - nothing is uploaded to any server, ensuring confidentiality for sensitive business data.

JSON to CSV Questions

Paste your JSON array into our tool, select a delimiter (comma, semicolon, tab, or pipe), and click Convert. The keys of each object become CSV column headers and each object becomes a row. Nested objects are flattened using dot notation. Download the result as a .csv file or copy to clipboard.

The tool accepts a JSON array of objects - e.g. [{"name":"Alice","city":"Chennai"},{"name":"Bob","city":"Mumbai"}]. Each object becomes one CSV row. A single JSON object (not an array) is treated as a one-row table. Nested objects are flattened into dot-notation column names.

Yes - the .csv file opens in Excel, Google Sheets, and LibreOffice Calc. If Excel shows all data in one column, use Data → Text to Columns with the correct delimiter. For Excel users in India (where semicolons are common in regional settings), try the semicolon delimiter option.

Flattening converts nested objects into flat key-value pairs using dot notation. For example, {"address":{"city":"Chennai","pin":"600001"}} becomes two columns: address.city and address.pin. Enable 'Flatten nested objects' in our tool to activate this for API responses or deeply nested JSON.

Yes - all JSON to CSV conversion happens entirely in your browser. No data is sent to any server. This makes it safe to use with sensitive API responses, customer data exports, or private JSON content.
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