Code & Data Utilities

JSON Formatter & Validator

Format (Pretty Print) or minify JSON data with real-time syntax validation and error position detection.

Input JSON

{
  "site": "AurumTools",
  "version": "1.0.0",
  "features": [
    "Fast & Simple",
    "Instant Execution",
    "Mobile Responsive"
  ],
  "author": {
    "name": "Frontend Engineer",
    "verified": true,
    "rating": 5
  },
  "stats": {
    "toolsCount": 10,
    "sampleItems": 42
  }
}

Output JSON

{
  "site": "AurumTools",
  "version": "1.0.0",
  "features": [
    "Fast & Simple",
    "Instant Execution",
    "Mobile Responsive"
  ],
  "author": {
    "name": "Frontend Engineer",
    "verified": true,
    "rating": 5
  },
  "stats": {
    "toolsCount": 10,
    "sampleItems": 42
  }
}

크기/Size:291 B글자수/Chars:291줄수/Lines:18키 개수/Keys:8

JSON Standard Overview (RFC 8259)

JSON (JavaScript Object Notation) is a lightweight data-interchange format defined by RFC 8259. Property names must strictly be enclosed in double quotes ("), supporting strings, numbers, booleans, objects, arrays, and null.

Pretty Print vs. Minification

Pretty-printing inserts indentation and line breaks for human readability during development, whereas Minification eliminates non-essential whitespace to produce a compact JSON payload. The actual bandwidth reduction depends on whitespace density and transport-level compression (Gzip/Brotli).