How do I view JSON in a tree?

Paste your JSON into the input area, then click 'Format & View'. The tree view panel shows an interactive collapsible tree of your JSON data.

Does this tool validate JSON?

Yes. The tool validates JSON in real-time and highlights any syntax errors with line and column numbers for easy debugging.

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JSON Viewer & Formatter

Validate, format, minify, and explore JSON data with an interactive tree view — all client-side.

JSON Viewer & Formatter

Validate • Format • Tree View • Minify

Input

Tree View

Paste JSON and click Format & View

How to Use

Paste your JSON string into the input area. You can type it manually or use the Paste button.
Click Validate to check if your JSON is valid. Errors are shown with line and column numbers.
Click Format & View to pretty-print the JSON and see an interactive Tree View on the right.
Click Minify to compress JSON into a single line (great for APIs).
Use Copy to copy the current JSON to clipboard, or Download to save as a .json file.
In the Tree View, click ▶ / ▼ icons to expand/collapse nodes. Nested objects and arrays are fully collapsible.

Tip: Use the tree view to quickly navigate large JSON structures. The colored syntax (keys, strings, numbers, booleans) makes data types easy to distinguish.