Question 1

How do I convert JSON to CSV?

Accepted Answer

Paste your JSON array into the input field and click Convert. The tool automatically extracts headers from the first object and creates a CSV with all values. Nested objects are stringified.

Question 2

Can I convert CSV back to JSON?

Accepted Answer

Yes! Click the CSV → JSON button to switch modes. Paste your CSV data (with headers in the first row) and click Convert to get a JSON array.

Question 3

Is my data uploaded to a server?

Accepted Answer

No. All conversion happens in your browser using JavaScript. Your data never leaves your device. We don't store, log, or transmit any of your data.

Question 4

What JSON formats are supported?

Accepted Answer

The tool supports JSON arrays of objects like [{...}, {...}]. Single objects are automatically wrapped in an array. Nested objects and arrays are converted to JSON strings in the CSV output.

Question 5

Is there a file size limit?

Accepted Answer

Since processing happens in your browser, there's no hard limit. However, very large files (10MB+) may slow down your browser. For best performance, keep files under 5MB.

JSON ↔ CSV Converter

Use JSON ↔ CSV Converter

Frequently Asked Questions

Related Tools