JSON Viewer
A JSON viewer turns valid JSON into a structured tree so deeply nested objects and arrays can be inspected without reading a single long line.
Quick answer
Explore nested JSON in a collapsible tree to inspect objects, arrays, and values quickly. The core operation is designed for quick browser-based use without an account.
How to use this tool
- Paste valid json and run the viewer. expand the branches you need to inspect.
Common errors and things to check
Invalid JSON must be fixed before it can be rendered as a tree. Very large documents may also be harder to navigate in any browser UI.
Common use cases
- Inspecting API responses
- Exploring nested configuration
- Debugging object structure
Privacy and local processing
Core processing for this tool is designed to happen in your browser. The page does not intentionally upload ordinary tool input to a DataToolBase server. Do not paste passwords, private keys, access tokens, personal data, or other sensitive secrets unless you have verified the security requirements for your use case.
Frequently asked questions
What does a JSON viewer do?
It presents parsed JSON as a navigable hierarchy of objects, arrays, and primitive values.
Can I inspect nested arrays?
Yes. Arrays and objects are represented as expandable nodes.