How are CSV headers handled when converting to JSON?

The first row is automatically used as JSON object keys, and each subsequent row becomes the corresponding values. You can customize header mapping in settings.

Does it support nested JSON structures?

Yes, you can define nested fields using dot notation. For example, user.name will generate a nested object structure.

EffiRoom

CSV JSON Converter

Convert CSV and JSON with header mapping

Runs locally in your browser; input is never uploaded

Data & Formats

Direction

Usage

Paste CSV or JSON text, choose a conversion direction (Auto by default), then run to convert between CSV and JSON.

FAQ

1.
How are CSV headers handled when converting to JSON?
The first row is automatically used as JSON object keys, and each subsequent row becomes the corresponding values. You can customize header mapping in settings.
2.
Does it support nested JSON structures?
Yes, you can define nested fields using dot notation. For example, user.name will generate a nested object structure.