What if my CSV has commas inside a quoted field?

Standard CSV quoting (commas inside double-quoted fields) is parsed correctly and won't be mistaken for column separators.

Does the first row need to be a header row?

Yes -- the first row is used as the JSON key names for every subsequent row's values.

developer Client-Side Only

CSV to JSON Converter

Convert CSV spreadsheets and data rows into structured, formatted JSON objects.

Input CSV (with header row)

JSON Output

[
  {
    "id": 1,
    "name": "Alice",
    "role": "Engineer",
    "city": "San Francisco"
  },
  {
    "id": 2,
    "name": "Bob",
    "role": "Designer",
    "city": "New York"
  },
  {
    "id": 3,
    "name": "Charlie",
    "role": "Architect",
    "city": "London"
  }
]

Zero-Leakage Local Processing

All text formatting, JSON/JWT parsing, cryptographic hashing, and image compression execute entirely inside your browser. No private data is ever sent to Burnjet servers.

Quick Reference & Instructions

Simple steps, pro tips, and execution details

Paste or Enter Input

Paste your raw JSON, code snippet, tokens, or values into the input panel.

Select Options & Modes

Choose formatting options, indentation spaces, or target conversion standards.

Copy or Download Output

One-click copy to clipboard or download the formatted file ready for production.

How It Works

Parses CSV rows, infers numeric and boolean types, and produces formatted JSON client-side.

Frequently Asked Questions

Common questions about calculations, assumptions, and edge cases.

It infers basic types -- values that look like numbers or true/false are converted accordingly, while everything else stays a string, so downstream code doesn't have to parse numeric strings manually.

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