Flat JSON text is hard to navigate for deeply nested documents. A collapsible tree lets you hide branches you do not care about and focus on the structure that matters. Collapsed nodes show a count of keys or items so you never lose context.

Best JSON Viewer Online

input.json

tree

Tree appears here after parsing.

Paste JSON and click View to explore it as a collapsible tree.

Guides for Viewer

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Guide

JSON Formatter, Validator, Viewer: Pick the Right Tool

Compare formatter, validator, viewer, minifier, and diff side by side, with the order to chain them when you're reviewing an API payload.

Guide

Fix Unquoted Keys in JSON

Object keys like name, active, and profile must be quoted in valid JSON, even when the key looks like a normal identifier.

Guide

Repair LLM JSON Output

AI responses often look like JSON but include markdown fences, comments, Python-style literals, or JavaScript object syntax.

Interactive JSON tree viewer

Paste any JSON document and explore it as a collapsible tree. Click ▶ next to any object or array to collapse it — the node shows a count of hidden keys or items so you can navigate large documents without losing context. Click ▼ to expand it again, or use Collapse all / Expand all in the panel header.

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How to Use the JSON Viewer

Paste your data: Paste your raw JSON payload into the input editor panel.
Inspect the tree: The interactive JSON tree panel updates in real-time. Expand nested properties by clicking on the arrow icons.
Copy keys & values: Hover over any node in the viewer to view paths or click to extract specific pieces of the parsed JSON data.

Features of our JSON Tree Viewer

Collapsible Nodes: Easily collapse large arrays or objects to focus on the structure of interest.
Auto-Fix on Load: If your JSON has syntax errors like trailing commas or single quotes, the viewer attempts to repair them automatically before displaying the tree.
Local Browser Execution: Your data is processed 100% locally in your browser. We never upload your JSON payload to any server.

FAQ

Why is my tree empty?

A tree can only be built from parseable JSON. If your input has syntax errors (trailing commas, single quotes, unquoted keys, comments) that are too severe for automatic repair, fix it first with JSON Fix, then view the cleaned result.

Can I copy the JSON path of a node?

Yes! Expanding nested items operates like a dynamic path finder. You can see the hierarchical path of any key as you drill down into the object tree.

Is my JSON payload secure on this site?

Absolutely. This tool is built entirely client-side. The JSON text is parsed directly inside your browser tab, making it highly secure for corporate data, API keys, or database payloads.