{ }

Paste JSON in the Input tab, then click Format

Path:

Key:

Value:

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Paste JSON in the Input tab, then switch to Tree View

Search:

Ready

What is JSON?

JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. Originally derived from JavaScript, JSON has become a language-independent standard used across virtually all modern programming languages and platforms.

JSON is the most widely used format for APIs, configuration files, and data storage in web applications. Its simplicity and readability make it the preferred choice over alternatives like XML for most web-based data exchange.

What is a JSON Viewer & Formatter?

A JSON Viewer & Formatter is a tool that takes raw or minified JSON text and transforms it into a well-structured, human-readable format. This tool provides two main views:

Formatted View — Displays JSON with proper indentation, syntax highlighting for keys, strings, numbers, booleans, and null values, making it easy to read at a glance.

Tree View — Presents JSON as an interactive, collapsible tree structure where you can expand and collapse nodes, search for keys or values, and copy JSONPath expressions.

How to Use This Tool

Paste your JSON data into the Input tab, or click Upload to load a .json file. You can also drag and drop a file directly.

Click the Format button to beautify your JSON, or switch to the Formatted or Tree View tab — the JSON will be parsed automatically.

Use the Indent dropdown to choose between 2 spaces, 4 spaces, or tabs for formatting.

In Tree View, click any node to see its path, key, and value in the detail panel. Use + / − buttons to expand or collapse sections.

Use the Search bar at the bottom of the tree to find specific keys or values. Navigate between matches with the Prev / Next buttons.

Why Use This JSON Viewer?

100% Client-Side Processing — Your data never leaves your browser. No data is uploaded to any server, ensuring complete privacy and security.
Interactive Tree View — Explore complex JSON structures with collapsible nodes, type badges, guide lines, and JSONPath copying.
Instant Validation — The tool automatically validates your JSON and provides detailed error messages with line and column numbers if something is wrong.
Search & Navigation — Quickly find specific keys or values within large JSON documents and navigate between matches.
Free & No Sign-Up — Use all features without registration, subscriptions, or hidden fees.

Frequently Asked Questions

Is my JSON data safe when using this tool?

Yes. JSON Tools processes everything entirely in your browser using JavaScript. Your data is never sent to any external server. You can verify this by checking your browser's network tab — no JSON data is transmitted.

What is the maximum JSON file size I can process?

Since processing happens in your browser, the limit depends on your device's memory. In practice, most modern browsers can handle JSON files up to 50-100 MB without issues. For very large files, consider using a dedicated desktop application.

What is JSONPath and how do I copy it?

JSONPath is a query language for JSON, similar to XPath for XML. It provides a way to reference specific elements within a JSON document. In our Tree View, click any node to see its full JSONPath in the detail panel (e.g., $.user.address.city), then click the Copy button to copy it to your clipboard.

Can I use this tool offline?

Once the page is loaded, all core functionality works without an internet connection since everything runs client-side. However, you need an initial internet connection to load the page.