CSV to JSON Converter

Convert CSV to JSON array with automatic type inference and configurable delimiters.

Delimiter

Header row Infer types Empty → null

CSV Input

JSON Output

[
  {
    "name": "Alice",
    "age": 30,
    "city": "Toronto"
  },
  {
    "name": "Bob",
    "age": 25,
    "city": "Vancouver"
  }
]

Frequently Asked Questions

Is the first row always treated as headers?

By default yes. You can toggle 'Header row' off to produce arrays of arrays instead of arrays of objects.

How does type inference work?

Values matching numeric patterns become numbers; 'true'/'false' become booleans; empty strings become null (if enabled). Otherwise values remain strings.

Related Tools

JSON to CSV Converter

Convert JSON arrays to CSV with automatic column detection, custom delimiters, and download.

JSON Formatter

Format, validate, and minify JSON instantly.

YAML Validator & Formatter

Validate YAML syntax and convert between YAML and JSON. Catches indentation errors and reports line numbers.