CSV to JSON Converter

Convert CSV files to JSON online for free. Supports custom delimiters, headers, and nested output.

Options

Delimiter

Indent

Output Format

First row is header

JSON Output

4 rows · 5 cols

[
  {
    "id": "1",
    "name": "Alice Johnson",
    "email": "alice@example.com",
    "age": "28",
    "city": "New York"
  },
  {
    "id": "2",
    "name": "Bob Smith",
    "email": "bob@example.com",
    "age": "34",
    "city": "London"
  },
  {
    "id": "3",
    "name": "Carol White",
    "email": "carol@example.com",
    "age": "22",
    "city": "Tokyo"
  },
  {
    "id": "4",
    "name": "David Brown",
    "email": "david@example.com",
    "age": "45",
    "city": "Paris"
  }
]

このツールについて

Convert CSV data to JSON instantly. Supports custom delimiters (comma, semicolon, tab, pipe), auto-detect headers, and configurable output formats including array of objects, array of arrays, and keyed objects.

使い方

Paste or Upload CSV
Paste your CSV data or upload a .csv file.
Configure Options
Set delimiter, header row, and output format.
Convert & Download
Copy the JSON or download as a .json file.

活用シーン

Data Migration

Convert spreadsheet exports to JSON for use in APIs or databases.

よくある質問

Does it handle quoted fields with commas?

Yes. RFC 4180-compliant CSV parsing handles quoted fields, escaped quotes, and embedded newlines.

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このツールについて

使い方

Paste or Upload CSV

Configure Options

Convert & Download

活用シーン

Data Migration

よくある質問

Does it handle quoted fields with commas?

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