Format Config JSON

Configuration files are much easier to read and edit when properly formatted with indentation.

Indent:

Switch tool:

Try:

Valid JSON

Input JSON138 characters

Formatted Output● Live

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{
  "database": {
    "host": "localhost",
    "port": 5432,
    "name": "mydb"
  },
  "cache": {
    "enabled": true,
    "ttl": 3600
  },
  "logging": {
    "level": "info",
    "format": "json"
  }
}

How it works

Paste your JSON — it validates and formats automatically
Invalid JSON shows error details with line/column position
Choose 2 or 4 space indentation
Copy or download the formatted result

Code Examples

Here's how to achieve this in different programming languages:

1// Format JSON with 2-space indentation
2const input = `{"database":{"host":"localhost","port":5432,"name":"mydb"},"cache":{"enabled":true,"ttl":3600},"logging":{"level":"info","format":"json"}}`;
3const formatted = JSON.stringify(JSON.parse(input), null, 2);
4console.log(formatted);
5
6// Output:
7// {
8//   "database": {
9//     "host": "localhost",
10//     "port": 5432,
11//     "name": "mydb"
12//   },
13//   "cache": {
14//     "enabled": true,
15//     "ttl": 3600
16//   },
17//   "logging": {
18//     "level": "info",
19//     "format": "json"
20//   }
21// }

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