JSON Viewer

The JSON Viewer tool lets you view, format, and validate JSON data with ease. It beautifies raw JSON input for better readability and highlights any syntax errors. Perfect for developers, testers, and anyone working with APIs or data files.

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JSON Viewer – Format & Validate JSON Online

The JSON Viewer is a free, web-based tool that helps you view and format JSON data in a clear, readable way. Whether you're debugging an API response, reviewing config files, or validating large data sets, this tool simplifies JSON analysis. It formats your raw JSON input, applies proper indentation, and highlights any syntax issues or errors in real time.

Key Features of the JSON Viewer Tool

  • Beautify JSON: Auto-format messy or minified JSON for easy readability.
  • Validate JSON: Check for syntax errors and structure issues instantly.
  • Tree View Mode: Expand and collapse JSON nodes for detailed analysis.
  • Minify Option: Reduce file size by removing whitespace and line breaks.
  • Copy & Export: Copy formatted JSON or download it as a file.
  • Browser-Based: No downloads, no sign-up—everything runs in your browser securely.

Why Use This JSON Viewer?

JSON is a lightweight and popular data format used in web development, APIs, IoT, and configurations. However, reading raw JSON can be difficult without formatting. This tool ensures you can view, debug, and edit JSON more efficiently. It is especially useful for developers, analysts, testers, and students who work with JSON regularly.

How to Use

Simply paste your JSON data into the input box and the viewer will automatically display a formatted version. You can toggle between tree view and plain text, copy the output, or download it for further use.