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JSON Viewer

Easily View and Format JSON Data

Paste Your Raw JSON Here

Formatted JSON Output

✅ Why Use This Tool?

Improves Readability

Makes minified or complex JSON easy to understand and debug with clear formatting.

Interactive Navigation

Easily expand and collapse nested objects and arrays to explore your data structure.

Validates Syntax

Instantly validates your JSON and highlights errors, helping you find issues quickly.

Free & Accessible

Use it anytime, anywhere, right in your browser without registration or installation.

The Language of APIs: Making Sense of JSON 📄

The JSON Viewer is a convenient online tool that allows you to visualize, format, and analyze JSON (JavaScript Object Notation) data effortlessly. In today's web, JSON is the de facto standard for data exchange between servers and clients. This tool is indispensable for anyone working with that data.

What is JSON?

JSON is a lightweight, text-based data-interchange format. It's easy for humans to read and write and easy for machines to parse and generate. It is built on two structures:

  • A collection of key/value pairs. In various languages, this is realized as an object, record, struct, dictionary, or associative array. (e.g., `"name": "John Doe"`).
  • An ordered list of values. In most languages, this is realized as an array, vector, or list. (e.g., `[1, "apple", true]`).

This simple structure is incredibly powerful and flexible, allowing for deeply nested and complex data representations.

The Need for a Viewer

While simple JSON is readable, data from APIs often comes "minified"—with all whitespace removed to save bandwidth. A minified JSON string is just a dense block of text, nearly impossible for a human to parse visually.

A JSON Viewer solves this by:

  • Beautifying the Code: It adds indentation and line breaks to reveal the hierarchical structure of the data.
  • Adding Interactivity: The ability to collapse and expand nodes (objects and arrays) is crucial for managing large, deeply nested data. It allows you to focus on one part of the structure at a time without getting lost.
  • Validating the Syntax: A misplaced comma or bracket can invalidate an entire JSON structure. A good viewer will immediately flag these errors, saving hours of debugging time.

Whether you’re a developer working with API responses, a data analyst examining a data feed, or a student learning about web technologies, the JSON Viewer helps you decode and navigate JSON effortlessly.