CSV ↔ JSON Converter

Convert CSV tables and JSON arrays both ways with quoted-field support for data preparation.

FreeBrowser

Delimiter

Header rowUse the first CSV row as JSON object keys.Pretty JSONIndent JSON output for readability.

CSV Input

JSON Output

[
  {
    "name": "Ada Lovelace",
    "email": "ada@example.com",
    "notes": "First programmer, mathematician"
  },
  {
    "name": "Grace Hopper",
    "email": "grace@example.com",
    "notes": "Worked with compilers\nand naval systems"
  },
  {
    "name": "Linus Torvalds",
    "email": "linus@example.com",
    "notes": "Said \"Talk is cheap. Show me the code.\""
  }
]

About CSV ↔ JSON Converter

Convert tabular CSV text into JSON records or create CSV from a JSON array. Configure separators and header handling to move a small dataset between spreadsheets and API workflows.

How to use CSV ↔ JSON Converter

Choose the conversion direction and paste the source data.
Set delimiter and header options for the table.
Convert, inspect the columns and copy or download the result.

Input and output example

Input and settings: name,city Ada,London
Expected output: [{"name":"Ada","city":"London"}]

Illustrated with comma separation and a header row.

When to use this tool

Prepare spreadsheet rows for an API fixture.
Export simple JSON records for spreadsheet review.

Limits to know before using it

Nested structures are not naturally tabular. Check missing fields, quoting and value types, and review spreadsheet formula-like cells before importing untrusted data.

Data handling and cost

The main operation runs in your browser; tool input is not uploaded for processing. The site can still use session cookies and collect operational or usage data as described in the privacy policy.

Free to use in your browser, with no sign-in needed.

Frequently Asked Questions

No. Parsing and conversion run locally in your browser.

Yes. The converter handles quoted commas, quoted newlines, and escaped double quotes.

With headers enabled, CSV rows become objects keyed by the first row. Without headers, rows become arrays.

About CSV ↔ JSON Converter

How to use CSV ↔ JSON Converter

Input and output example

When to use this tool

Limits to know before using it

Data handling and cost

Frequently Asked Questions

Does CSV or JSON data leave the browser?

Are quoted CSV fields supported?

What JSON shape does CSV input produce?

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