CSV to JSON
Convert a CSV table into a JSON array.
How it works
- Choose or drop your files
- Select “Convert to JSON” and let your browser process it
- Review the result and download it to your device
Why use FileTools for csv to json?
CSV to JSON reads the first row as field names and converts each following row into an object. Quoted commas and escaped quotes are handled so common spreadsheet exports can be transformed reliably.
Best suited for
Moving spreadsheet exports into scripts, prototypes, APIs, and data inspection workflows.
Input and output
Input: A UTF-8 CSV file with a header row.
Output: A JSON array in which every CSV row becomes an object.
Known limitation
CSV has no universal type system, so values are emitted as text and duplicate headers can be ambiguous.
Practical tips
- Give every column a unique, non-empty header before exporting the CSV.
- Check dates, leading zeros, and large identifiers after conversion because spreadsheet software may have changed them earlier.