Validate Your JSON Syntax Online Validate JSON syntax with detailed error messages showing the exact location of issues.

The tool works by using the `JSON.parse` method to attempt to parse the input string as JSON. If this fails, it catches the error and extracts the error message, which often includes information about the position of the error in the input string. It then uses regular expressions to extract this position information and reports the error location with line and column numbers. The tool also checks for common mistakes such as single quotes instead of double quotes, trailing commas, and undefined values, providing hints to help users correct these errors.

Under the hood, the `analyzeJson` function recursively traverses the parsed JSON data structure, building a list of strings that describe its structure. This includes information about arrays and objects, such as their sizes and nesting depths. The `validateJson` function uses this information to build a detailed report about the input JSON data, including its size, formatted size, root type, and maximum nesting depth. The tool uses React's `useState` and `useCallback` hooks to manage its state and handle user interactions, such as validating the input JSON data or clearing the input field.

The tool's user interface is built using HTML and CSS, with a textarea for inputting JSON data, buttons for validating and formatting the data, and a div for displaying the validation results. The `glass-card` and `glass-input` classes are used to style these elements, giving them a distinctive appearance. When the user clicks the "Validate" button, the tool calls the `handleValidate` function, which in turn calls `validateJson` to perform the actual validation and generate the report. If the input data is valid, the tool also provides a formatted version of the data, using the `JSON.stringify` method with an indentation of 2 spaces to make it more readable.