EveryToolAI

CSV to JSON Converter

Convert CSV to JSON and JSON to CSV online. Handles quoted fields and headers correctly, entirely in your browser — no upload.

Output
[
  {
    "name": "Ada",
    "role": "engineer"
  },
  {
    "name": "Alan",
    "role": "scientist"
  }
]

This free converter turns CSV into JSON and JSON back into CSV, in either direction. Paste CSV with a header row and get a clean JSON array of objects keyed by your column names; paste a JSON array of objects and get properly-quoted CSV ready for a spreadsheet. The conversion runs as you type and copies out with one click.

It uses a proper CSV parser rather than a naive split on commas, so it handles the cases that break simpler tools: fields containing commas, quoted values, embedded quotes and line breaks inside cells. That means a spreadsheet export with addresses or descriptions converts correctly instead of shifting every column. When the input is malformed — a broken row, or JSON that is not an array of objects — you get a clear error message instead of silent, wrong output.

Everything happens locally in your browser: your data is never uploaded, which matters for the customer lists, exports and datasets people convert most. Worked example: the CSV “name,role / Ada,engineer” becomes [{"name":"Ada","role":"engineer"}], and converting it back reproduces the original CSV exactly.

Frequently asked questions

Does it handle commas inside quoted fields?

Yes. It uses a full CSV parser, so a quoted value like "Smith, Jane" stays in one column instead of splitting — the common failure of naive converters.

What JSON shape does CSV produce?

An array of objects, one per data row, with keys taken from the header row. Converting that array back to CSV reproduces the original structure.

Is my data uploaded to a server?

No. Parsing and conversion run entirely in your browser, so customer lists and exports never leave your device.

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