JSON to CSV Converter

What Does This Tool Do?

This tool converts JSON — specifically an array of objects — into CSV (comma-separated values), the universal format understood by Excel, Google Sheets, databases, and data-analysis tools. It scans every object in your array, collects the complete set of keys to build a header row, and writes one CSV row per object.

Values that contain the delimiter, quotes, or line breaks are automatically wrapped in double quotes and escaped according to the CSV standard, so the output imports cleanly into any spreadsheet program without breaking columns.

How to Convert JSON to CSV

• Paste a JSON array of objects, e.g. [ { "id": 1, "name": "Ada" } ]
• Pick a delimiter — comma (standard), semicolon (common in Europe), or tab
• The CSV output is generated instantly with a header row from all keys
• Objects missing a key get an empty cell, so rows always line up
• Click Copy to grab the CSV, then paste it into your spreadsheet

Handling Nested and Irregular Data

When objects have different keys, the converter takes the union of all keys across every object so no data is lost. Nested objects and arrays are serialized back to compact JSON inside their cell, keeping the structure intact even within a flat CSV grid.

This makes the tool reliable for real-world API data, where records frequently have optional or inconsistent fields rather than a perfectly uniform shape.

Common Use Cases

Developers and analysts use JSON to CSV conversion to load API data into Excel or Google Sheets, prepare datasets for import into SQL databases, generate reports from application data, and hand off structured data to non-technical colleagues who work in spreadsheets. Everything runs locally in your browser, keeping your data private.