JSON

How to View JSON Online

Inspect nested API responses and config files as a collapsible tree. FreeToolMate JSON Viewer runs entirely in your browser — the payload is never uploaded.

Steps

1. Open the JSON Viewer.
2. Paste JSON or load a .json file.
3. Expand and collapse nodes to explore nested objects and arrays.
4. Search or copy values you need back into your editor or client.

When a tree beats a text dump

Large API responses are hard to read as a single minified line. A tree view helps you find keys, spot unexpected nulls, and confirm array lengths without scrolling through thousands of characters.

Related tools

• JSON Beautify to pretty-print before sharing
• JSONPath Tester to query nested values
• JSON Schema Validator to check structure

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