CSV ↔ JSON Converter
Parse quoted CSV and flatten arrays of objects to CSV.
CSV → JSON
JSON → CSV
How to Convert CSV and JSON?
CSV to JSON:
- Paste your CSV data (with headers in first row) in the left text area.
- Click Convert to transform it to JSON array format.
- Click Copy JSON to copy the result.
JSON to CSV:
- Paste your JSON array of objects in the right text area.
- Click Convert to transform it to CSV format.
- Click Copy CSV to copy the result.
Frequently Asked Questions
How do I convert CSV to JSON?
Paste your CSV data or upload a CSV file, then click Convert. The first row is treated as the header and becomes the JSON object keys. The result is a JSON array where each row is an object.
Can I convert JSON back to CSV?
Yes. Paste a JSON array of objects into the JSON tab and convert to get a CSV with headers derived from the object keys. Nested objects are flattened.
What CSV delimiters are supported?
The tool auto-detects common delimiters including comma, semicolon, tab, and pipe. You can also manually specify the delimiter if auto-detection gives unexpected results.
Is my data sent to the server?
Conversion is performed entirely in the browser using JavaScript. Your CSV or JSON data never leaves your device, making it safe for sensitive or private data.
