JSON Viewer
This JSON viewer turns a document into an interactive tree you can fold, search and navigate. Every branch collapses on click, values are colour-coded by type so strings, numbers, booleans and nulls are distinguishable at a glance, and a filter box narrows the tree to just the keys or values you are looking for. Each row can copy its own accessor path — like $.order.items[0].sku — so you can paste it straight into code. The document is parsed and rendered in your browser and never uploaded.
How it works
Paste JSON on the left and it becomes a collapsible tree on the right. Click any arrow to fold a branch, use the search box to jump to a key or value, and click the path button on a row to copy its accessor path (like $.order.items[0].sku) straight to your clipboard.
Nothing is uploaded — the document is parsed and rendered entirely in your browser.
The tree appears here once you paste valid JSON.
How to view JSON as a tree
- Paste your JSON into the input on the left, or load the sample to try it.
- The document appears on the right as a collapsible tree, opened two levels deep.
- Click an arrow to fold a branch, or use Expand all / Collapse all.
- Type in the filter box to keep only the branches whose key or value matches.
- Hover a row and click path to copy its accessor path, ready to paste into code.
Common use cases
- Exploring an unfamiliar API response without scrolling through hundreds of lines.
- Finding which key holds the value you need, then copying its exact path.
- Checking how deeply a payload nests before writing code to walk it.
- Confirming whether a field is a string, a number or null when a type bug is suspected.
Frequently asked questions
What is a JSON viewer?
A JSON viewer renders a document as an interactive tree instead of raw text, so nested objects and arrays can be folded away and you can navigate a large payload by structure rather than by scrolling through lines.
How do I find a specific key in a large JSON file?
Type into the filter box above the tree. It keeps only the branches whose key or value contains what you typed, and automatically expands the path to each match so you can see where it sits in the document.
Can I copy the path to a value?
Yes. Hover any row and click the path button to copy its accessor path, such as $.order.items[0].sku. That is the same syntax you would use to read the value in JavaScript, so it can be pasted directly into code.
How large a document can it handle?
The viewer renders everything in your browser, so the practical limit is your device memory rather than a server upload cap. Files of a few megabytes open fine; for very large documents, start collapsed and expand only the branch you need.
Does the viewer let me edit the JSON?
The left panel is a full editor with syntax highlighting and error reporting, so you can fix or adjust the document there and the tree updates as you type. The tree itself is for reading and navigating, not in-place editing.
Is my JSON uploaded when I view it?
No. Parsing and rendering happen entirely in your browser, so the document never leaves your device and is not logged or stored anywhere.
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