How to use CSV to JSON

What it does

Convert CSV spreadsheet data into structured JSON with auto-type detection. It runs entirely in your browser — your input never leaves your device.

Options

Every setting this tool exposes, straight from the code that validates it.

Worked example

Run these settings on the tool page:

• csv: id,name 1,Alice
• delimiter: ,
• outputFormat: array

You get:

[
  {
    "id": 1,
    "name": "Alice"
  }
]

Getting the result you want

Most of the control here is in the options above. If the output is not what you expected, the setting to check first is delimiter and outputFormat — those change the shape of the output rather than the input it accepts.

Troubleshooting

• Nothing happens / the output stays empty. csv is required — the tool waits until you provide it.
• A value is rejected. delimiter accepts at least 1 characters. Anything outside that is refused rather than silently clamped.
• It is slow on very large input. Everything runs in your browser, so speed depends on your device. Very large inputs are best split up, or run through the API where the work happens on our servers.

Automating it

The same logic is available as a REST endpoint, so you can run it from a script, a CI job or your own app.

Bash
curl "https://api.toolsxpo.com/v1/csv-to-json" \
  -H "Authorization: Bearer $TOOLSXPO_KEY"

It costs 1 credit per successful call. See the full endpoint reference, or try it in the playground.

Related tools

• BSON to JSON Converter
• CSV Cleaner
• CSV to SQL
• CSV to XML Converter
• CSV to YAML
• JSON to CSV