JSON Tree Viewer
Explore JSON data as a collapsible tree
JSON Tree Viewer is a free online tool from BrowserUtils that explore json data as a collapsible tree. It runs entirely in your browser — your data never leaves your device. No account required.
Paste JSON to visualize its structure
How to use JSON Tree Viewer
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About JSON Tree Viewer
Free online JSON tree viewer. Paste JSON and explore it as an interactive collapsible tree with expand/collapse nodes, type indicators, and value previews. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
JSON Tree Viewer specs
- Runtime
- 100% client-side (browser)
- Built on
- Native JavaScript JSON.parse / JSON.stringify (RFC 8259 compliant)
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
How is this different from a JSON formatter?
A JSON formatter outputs formatted text. The tree viewer provides an interactive, collapsible tree where you can expand and collapse nodes to explore large JSON structures without scrolling through thousands of lines.
Can I view large JSON files?
Yes, the tree viewer is optimized for large JSON structures. Nodes start collapsed so you can navigate to the data you need without rendering the entire document at once.
Does the tree viewer show data types?
Yes, each node displays a type indicator so you can quickly see whether a value is a string, number, boolean, null, array, or object.
Can I copy a specific value from the tree?
Yes, click on any node value to copy it. For objects and arrays, you can copy the entire subtree as formatted JSON.
Is the JSON tree viewer safe for private data?
Yes, the tree viewer runs entirely in your browser. No data is sent to a server, so you can safely explore JSON containing sensitive information.
How do I navigate deeply nested JSON in the tree viewer?
Click on any object or array node to expand it. All nodes start collapsed so you can drill down to the specific path you need without being overwhelmed by the full structure.
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