CSV, JSON, Excel and YAML converter

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Input

Output

Questions

How are CSV columns turned into JSON?

The first row becomes the keys. Each row after it becomes an object. Numbers and true/false come out as real numbers and booleans.

What about nested JSON going to CSV?

Nested objects and lists are written into the cell as JSON text, so nothing is lost.

Can I convert Excel files?

Yes. Open an .xlsx, .xls or .ods file to turn its first sheet into CSV, JSON or YAML. Use Download Excel to save any data as .xlsx.

Is my data sent anywhere?

No. Conversion happens in your browser as you type.