JSON Formatter, Validator & TypeScript Generator
Beautify, validate, minify, and convert JSON structures into TypeScript interfaces or YAML definitions in real time with pinpoint syntax error markers.
JSON Formatter, Validator & TypeScript Generator
Validate and format JSON data, locate syntax errors with exact line and column coordinates, and generate TypeScript interfaces and YAML schemas instantly.
{
"id": 101,
"name": "WEBioDD Cloud Platform",
"active": true,
"version": "2.4.0",
"tags": ["diagnostics", "security", "utilities"],
"metrics": {
"latencyMs": 14.5,
"uptime": 0.9999,
"regions": [
{ "name": "us-east-1", "healthy": true },
{ "name": "eu-central-1", "healthy": true }
]
}
}How to Format, Validate & Convert JSON
- 1
Paste or type raw JSON data into the editor area.
- 2
Choose your indentation preference (2 spaces, 4 spaces, or Tabs) to beautify the code immediately.
- 3
Click 'Minify' to strip all whitespace and compress JSON payload for production API requests.
- 4
Use 'TypeScript' or 'YAML' tabs to automatically generate corresponding TypeScript type interfaces or clean YAML structures.
JSON Formatting & Validation FAQ
How does the syntax error locator work?
The parser analyzes JSON character tokens sequentially. If an unexpected token, trailing comma, or missing quote occurs, it calculates the exact line and column number of the defect.
Can I convert complex nested JSON objects to TypeScript?
Yes. Our TypeScript generator recursively traverses nested objects and arrays, automatically inferring nested interfaces and primitive types (string, number, boolean, null, Array).
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