About JSON Tree Viewer
With a large, deeply nested JSON, plain text makes it hard to see the hierarchy. This tool pairs a syntax-highlighted code editor on the left with a collapsible tree on the right: search and highlight keys/values within the tree, click a node to copy its JSONPath, see inline array lengths and object key counts, and switch between Tree / Raw / Table views. Virtual scrolling keeps even huge JSON trees smooth. All parsing is local and nothing is uploaded. Tip: Bookmark this tool for quick access during your web development work. All processing happens locally in your browser with no installation required.
How to Use
- Open the JSON Tree Viewer tool page
- Enter or paste your data into the input area
- View the real-time results and use the copy button to get the output
Use Cases
- Browse API data — Render complex API JSON as a tree and expand level by level to view the fields you care about.
- Search to locate fields — Type a keyword to highlight every matching key or value, and jump between hits with the up/down arrows.
- Copy node paths — Click any node to copy its JSONPath (e.g. $.config.theme) for use in code or queries.
- View arrays as tables — Switch an array of objects to table view and compare rows like a spreadsheet.
- Inspect large data — Virtual scrolling lets huge JSON with tens of thousands of nodes expand smoothly without freezing the page.
- API response debugging — Paste a raw JSON API response and inspect the full structure with collapsible tree nodes.
- Large file exploration — Open a multi-MB JSON file in the viewer to navigate its structure without loading it into an editor.
FAQ
How large a JSON can it handle?
Thanks to virtual scrolling, the tree only renders nodes in the visible area, so multi-MB JSON with tens of thousands of nodes expands smoothly without freezing.
How do I search the tree?
Type a keyword in the search bar; all matching keys or values are highlighted with a hit count, and you can jump between matches with ↑/↓ or Enter.
How do I copy a node's path?
Hover a node to see its JSONPath, then click a leaf node to copy the path (e.g. $.users[0].name) for use in JSONPath queries or code.
When is table view available?
When the root is an array of objects, switch to table view and it uses the union of fields as column headers.
How does it differ from the formatter?
The JSON Formatter outputs editable indented text; this tool focuses on interactive browsing: collapsible tree, search, path copy and multiple views, better for understanding very large or deep JSON.
Any browser compatibility requirements?
This tool works in all modern browsers (Chrome, Firefox, Edge, Safari). No plugins or extensions required.
Can I use it offline?
After initial load, most features work offline. The core logic runs entirely in your browser with no network dependency.
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