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Validador JSON

Valida la sintaxis JSON e identifica números de línea y columna exactos de errores de formato.

Resumen Rápido: Valida la sintaxis JSON en línea. Encuentra errores exactos de formato con privacidad total en el navegador.

Input & Controls

Source Input 0 characters

Result Output

What is Validador JSON?

Quickly check if your JSON is compliant with RFC 8259 specifications. Get detailed syntax error messages with line numbers and character offsets.

Unlike traditional online utilities that upload your sensitive payloads to a remote server, TechnoLila's Validador JSON executes 100% locally in your web browser using modern JavaScript APIs, HTML5 Canvas, and SVG vector rendering. No barcodes, asset IDs, Wi-Fi credentials, tokens, or proprietary payloads ever leave your device.

How to Use Validador JSON Online

Paste your JSON code into the editor. Click "Validate JSON". The tool will instantly confirm validity or show detailed error details.

Validador JSON Example

Example Input:

{"title": "Sample", "status": true,}

Example Output:

Syntax Error: Trailing comma at line 1, column 33

Common Use Cases

Testing API payloads, verifying webhook schemas, finding broken brackets.

Common Mistakes & Gotchas

Using undefined constants, NaN, or single quoted strings.

Frequently Asked Questions

What causes JSON validation errors?

Common issues include trailing commas, unescaped quotes, unquoted keys, and comments (which standard JSON does not support).

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