CSV and JSON conversion runs locally in your browser. Nothing is uploaded.

CSV to JSON Converter

Paste CSV with a header row and convert it to pretty JSON, or turn a JSON array of objects back into copyable CSV.

CSV and JSON conversion runs locally in your browser. Nothing is uploaded.

Convert CSV and JSON

Conversion direction

Delimiter

Input Output

[
  {
    "name": "Alex",
    "email": "alex@example.com"
  },
  {
    "name": "Sam",
    "email": "sam@example.com"
  }
]

Private CSV and JSON conversion for small data tasks

Use this CSV to JSON converter for sample data, spreadsheet exports, API test payloads, documentation examples, and quick cleanup work when you need structured data in a different format.

The converter handles quoted CSV fields, escaped quotes, and delimiters or newlines inside quotes. Everything runs locally in your browser, so your data is not uploaded.

How to use this tool

Choose a direction

Select CSV to JSON or JSON to CSV depending on the format you want to create.
Pick the delimiter

Use comma, semicolon, or tab delimiters to match your CSV source or export target.
Paste and copy

Paste your data, review the live converted output, and copy it when it looks right.

FAQ

Does this CSV to JSON converter upload my data?

No. CSV and JSON conversion happens locally in your browser, and your input is not uploaded.

Does it support quoted CSV fields?

Yes. The parser supports quoted fields, escaped double quotes, and delimiters or newlines inside quoted fields.

What JSON shape is supported for JSON to CSV?

JSON to CSV expects an array of objects. The tool builds a header from the union of object keys.

Can I use semicolon or tab separated files?

Yes. Choose comma, semicolon, or tab as the delimiter before converting.