JSON Validator

Validate, format, and debug your JSON data with precision. Get instant feedback on syntax errors and formatting issues.

Enter JSON

Validation Result

Validate your JSON to see the result here

Syntax Validation

Check your JSON for syntax errors and get detailed error messages with line and column numbers.

Auto Formatting

Automatically format your JSON with proper indentation and line breaks for better readability.

Responsive Design

Use this tool on any device - desktop, tablet, or mobile - with a fully responsive interface.

How to Use JSON Validator

1

Enter Your JSON

Paste your JSON into the left input panel. You can start with the sample JSON provided or clear it to enter your own.

2

Validate Your JSON

Click the "Validate" button to check your JSON for syntax errors. The result will appear in the right panel.

3

View Results

If your JSON is valid, you'll see a success message. If there are errors, detailed information about the issue will be displayed, including the line and column numbers.

4

Format Your JSON

Use the "Format" button to automatically format your JSON with proper indentation, making it easier to read and debug.

Common JSON Errors

Missing Comma

{ "name": "John" "age": 30 }

Each key-value pair in an object must be separated by a comma.

Missing Quotes

{ name: "John", age: 30 }

Keys in JSON must be enclosed in double quotes.

Unclosed String

{ "name": "John, "age": 30 }

String values must be enclosed in double quotes.

Trailing Comma

{ "name": "John", "age": 30, }

JSON does not allow trailing commas in objects or arrays.

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