Question 1

What is a JSON Viewer?

Accepted Answer

A JSON Viewer is an online tool that formats and displays JSON (JavaScript Object Notation) data in a readable, structured format. It helps developers inspect, debug, and understand JSON data from APIs, configuration files, or databases.

Question 2

How do I format JSON online?

Accepted Answer

Simply paste your JSON data into the JSON Viewer input area and click 'Format JSON'. The tool will automatically beautify and validate your JSON, displaying it in an easy-to-read tree structure.

Question 3

Is this JSON Viewer free to use?

Accepted Answer

Yes, JSON Viewer & Inspector is completely free to use. No signup, login, or payment required. All processing happens in your browser for maximum privacy.

Question 4

Can I validate JSON syntax?

Accepted Answer

Yes, the JSON Viewer automatically validates JSON syntax and shows clear error messages if your JSON is invalid, helping you quickly identify and fix formatting issues.

Question 5

How do I debug API responses?

Accepted Answer

Paste your API's JSON response into the viewer. Use the tree view to explore nested data, search for specific keys or values, and use the inspector panel to examine individual nodes. The graph view provides a visual representation of data relationships.

Question 6

Can I test APIs with this tool?

Accepted Answer

Yes! The built-in API testing tool lets you send HTTP requests (GET, POST, PUT, DELETE, PATCH) directly from your browser. Add custom headers, query parameters, and request bodies. All requests are client-side for maximum security and privacy.

Question 7

Is this a Postman alternative?

Accepted Answer

Yes, it's a lightweight, browser-based alternative to Postman for testing REST APIs. No installation required, completely free, and all processing happens locally in your browser. Perfect for quick API testing and JSON response debugging.