CSV ↔ JSON Converter
Convert CSV to JSON and JSON to CSV online
Frequently Asked Questions
What is the CSV ⇄ JSON Converter?
It is a tool to convert data between Comma-Separated Values (CSV) and JSON format.
How do I convert CSV to JSON?
Paste your CSV rows into the editor. The converter parses the headers and outputs a clean JSON array of objects.
How do I convert JSON to CSV?
Paste a JSON array of objects, and the converter will automatically extract keys as column headers and generate CSV rows.
Does it support custom delimiters like tabs or semicolons?
Yes. You can configure custom delimiter characters (comma, tab, semicolon, pipe) for parsing CSV.
Is my data secure?
Yes. The conversion algorithms run completely in your web browser. No data is sent to a server.
How does it handle nested JSON objects during CSV export?
Nested structures are flattened or stringified to fit the flat tabular columns of the CSV format.
Can I convert large datasets?
Yes. Large sets are supported, but extremely large files may lag depending on browser memory limits.
What is a common conversion error?
Common errors include missing headers in CSV or malformed arrays/JSON syntax.