Free CSV to JSON Converter
Convert between CSV and JSON formats instantly with our free tool. Supports custom delimiters and automatic type detection.
- Instant CSV to JSON conversion with automatic type detection
- Support for custom delimiters (comma, semicolon, tab, pipe)
- Header row detection and customization options
- Reverse conversion from JSON back to CSV
- Pretty print or minified JSON output
- Handles quoted fields and escaped characters correctly
Frequently Asked Questions
How does automatic type detection work?
The converter analyzes each value and determines its type. Pure numbers become numeric types, 'true' and 'false' become booleans, and everything else remains as strings. This ensures your JSON is properly typed for APIs and databases.
Can I convert JSON back to CSV?
Yes! The tool works bidirectionally. Paste JSON array data and convert it to CSV format with your choice of delimiter. Headers are automatically generated from object keys.
What if my CSV has no header row?
You can toggle off header detection, and the converter will use generic field names like field1, field2, etc. You can also manually specify custom column names.