What if objects have different keys or missing properties?
The converter aggregates all unique keys across all objects to create the header row, placing empty values where keys are missing in specific items.
Converters
Convert a JSON array of objects into CSV rows.
Add an input and run this tool to see the output.
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JSON to CSV Developer Guide
100% Client-Side & PrivateTurn a header-compatible JSON array into CSV when moving sample data between APIs, spreadsheets, and local test fixtures.
Key capabilities
- Flattens JSON arrays of objects into structured, delimiter-separated CSV rows
- Automatically extracts object keys to form the header row
- Handles nested objects and arrays with clean JSON stringification
- Exports downloadable `.csv` files directly from the browser
Common use cases
- Exporting API database responses into spreadsheets for reporting and stakeholder review
- Preparing test data fixtures from JSON mocks into CSV files for load testing tools
- Quickly importing JSON-formatted customer or product records into Excel or Google Sheets
How to use JSON to CSV
- Paste your JSON array of objects (e.g. `[{ "id": 1, "name": "Alex" }]`) into the input field
- Check the generated CSV table preview and raw text output
- Copy the raw CSV or download it as a .csv file