CSV ↔ JSON Converter
Converts CSV to a JSON array of objects (or arrays) and JSON back to CSV — with type detection for numbers and booleans, delimiter options, and pretty or compact output.
Runs 100% in your browser — your files never leave your device.
Read the full guide to this tool
Notes
- Nested JSON objects are flattened into dotted column names (address.city) when converting to CSV.
- Values that look like numbers or booleans can be emitted as real JSON types or kept as strings.
- Runs 100% in your browser — your files and data never leave your device.
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