Input JSON
Output Valid JSON
{
  "project": "Ramupod",
  "version": "0.1.0",
  "free": true,
  "tools": [
    "JSON Formatter",
    "Markdown Editor",
    "Diff Viewer"
  ],
  "settings": {
    "theme": "light",
    "privacy": "local",
    "indent": 2
  }
}

Readable JSON. In seconds.

Paste your JSON or upload a file, choose your indentation, and hit Format. Minify removes whitespace; Validate checks the syntax.

Stays on your deviceYour JSON is processed in this browser and is never sent to a server.

A note on numbersUses native JavaScript JSON parsing. Very large integers may lose precision; encode them as strings to preserve exact values.

Ctrl ↵Keep your hands on the keyboardUse Ctrl + Enter to format from anywhere on this page.

Using JSON Formatter

Paste JSON or upload a file, choose indentation, then select Format or Minify. Native JavaScript number precision applies; encode large integer IDs as strings.