JSON Formatter

Format, minify, validate, and copy JSON with live validation feedback.

JSON Formatter

Paste JSON, watch live validation, format or minify the payload, and copy the result in one click.

Live validation

Format and minify output is always derived from the live input.

Output and status

Tip: the error message includes line and position details.

Valid JSON
Valid JSON
Type: object
Lines
1
Characters
161
Bytes
161
{
  "tool": "calcworks",
  "type": "json-formatter",
  "features": [
    "parse",
    "format",
    "minify",
    "validate",
    "copy"
  ],
  "settings": {
    "indent": 2,
    "preserveOrder": false
  },
  "active": true
}

What is a JSON formatter used for?

This tool is useful for API payloads, configuration files, and any structured data that needs to be more readable.

When the input is invalid, the error location and validation status are shown immediately.

When should I use minify?

Minify mode is useful when you want to trim payload size, remove extra whitespace, and keep transport text compact.

The formatted view is better for debugging, code review, and inspecting nested data.

How should I read the result?

When the JSON is valid, the tool shows the JSON type, line count, character count, and byte size.

When parsing fails, the parser message and approximate line/column location are emphasized.