About the JSON ↔ CSV Converter
Convert in both directions between JSON and CSV. Turn a JSON array of objects into a CSV table you can open in Excel or Google Sheets, or turn a CSV file back into JSON for code, APIs and databases. Column names come from the object keys, and back again.
How to use it
- Choose JSON → CSV or CSV → JSON.
- Paste your data.
- Copy the converted result.
Tip: For JSON → CSV, the input should be an array of objects with the same keys, like [{"name":"Ali","age":30}].
Questions
What JSON can be converted to CSV?
An array of objects. Each object becomes a row and each key a column.
What about nested objects?
Nested values are written into a single cell. Flatten deep structures first for the cleanest table.
Are numbers kept as numbers in JSON?
Yes, numbers and true/false values become real JSON values when converting from CSV.
Can I convert large files?
Yes. Very large files depend on your device's memory; CSV Studio also converts to JSON.
Is my file uploaded?
No. The file is opened and processed in your browser; it never leaves your device and nothing is stored on a server.