JSON to CSV Converter
Convert JSON to CSV format
About JSON to CSV Converter
JSON to CSV Converter is a free online tool that transforms JSON data — typically an array of objects — into a clean CSV (Comma-Separated Values) file. Paste your JSON array and the tool extracts the keys as column headers and the values as rows, producing a CSV you can open directly in Excel, Google Sheets, or any spreadsheet application.
The need to convert JSON to CSV arises constantly in data workflows. API responses return JSON; stakeholders want spreadsheets. Database exports come out as JSON; reporting tools need CSV. Analytics pipelines produce JSON; business users want Excel. JSON to CSV conversion bridges the developer world and the spreadsheet world without requiring custom code.
The conversion process flattens the JSON structure into a two-dimensional table. Simple flat JSON objects with string and number values convert straightforwardly — each key becomes a column header, each object in the array becomes a row. Nested objects and arrays are more complex: this tool handles one level of nesting by dot-notation flattening (e.g. "address.city" becomes a column header) or by serialising deeply nested structures as JSON strings within the CSV cell.
Once in CSV format, the data can be opened in Microsoft Excel, Google Sheets, LibreOffice Calc, or any database import tool. CSV is also the standard import format for CRM systems, email marketing platforms, e-commerce backends, and BI tools. Converting your API or database JSON output to CSV enables immediate non-technical stakeholder access to the data.
How to Use JSON to CSV Converter
- 1Paste your JSON array into the input field
- 2Click "Convert" to transform it to CSV format
- 3Review the CSV output with auto-detected column headers
- 4Copy the CSV or download it as a .csv file
- 5Open in Excel or Google Sheets as needed
Frequently Asked Questions
The converter expects a JSON array of objects — [{}, {}, {}]. Each object in the array should have the same keys (or a superset of them). Flat or one-level-nested objects produce the cleanest CSV output.
Nested objects are flattened using dot-notation (e.g. {"address": {"city": "Mumbai"}} becomes a column "address.city"). Deeply nested or array-valued properties may be serialised as a JSON string within the CSV cell.
Yes. Save the output as a .csv file and open it in Excel. If your data contains special characters or non-ASCII text, choose UTF-8 encoding when opening in Excel to avoid character display issues.
The converter builds the column list from all unique keys across all objects. Objects that are missing a key will have an empty cell in that column. No data is lost.
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