📊 Data
JSON to CSV Converter
Paste your JSON array and convert to a downloadable CSV. Handles nested objects automatically.
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How JSON to CSV conversion works
JSON is a nested data format suitable for APIs and configuration. CSV is a flat, tabular format suitable for spreadsheets and databases. This tool flattens JSON objects into a table where each key becomes a column and each object becomes a row.
What data structures are supported?
- Array of objects: Converts directly to rows and columns.
- Nested objects: Keys are flattened with dot notation (e.g., person.address.city).
- Arrays within objects: Converted to JSON strings or concatenated values.
- Null/undefined values: Become empty cells in CSV.
Common use cases
Exporting API responses to Excel, converting configuration JSON to spreadsheets, preparing data for SQL import, or sharing structured data with non-technical users.
Frequently asked questions
Are special characters handled?
Yes - quotes, commas, and newlines inside fields are properly escaped in the CSV output.
What if my JSON is invalid?
The tool will show you an error message highlighting the problem.