CSV to JSON — ECECH

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CSV → JSON

Make clean JSON from rows.

3 rows6 fields

Separator First row is a header

Paste your CSVNothing leaves this device

4 parsed lines · 140 chars

Live resultJSON · updates as you type

[
  {
    "id": 1,
    "code": "007",
    "name": "Ada",
    "city": "London, UK",
    "active": true,
    "score": 91.5
  },
  {
    "id": 2,
    "code": "0420",
    "name": "Grace",
    "city": "New York",
    "active": false,
    "score": 88
  },
  {
    "id": 3,
    "code": "1234567890123456789",
    "name": "Alan",
    "city": "Wilmslow",
    "active": true,
    "score": 77
  }
]

IDs stay IDs

Leading zeros and unsafe large integers remain text. Only clear numbers and true/false values change type.

007 → "007"

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How this app works

Paste a CSV sample, choose the operation’s small set of controls, and review the converted output. Quoted delimiters are parsed before rows or columns are changed. Processing stays in this browser.