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Open BracketView
Go to app.bracketview.in in any browser.
JSON Viewer
Free Online JSON Viewer
Free online JSON viewer with collapsible tree, graph view, path copy, and search. Privacy-first — your data stays in the browser.
The problem
Large API responses and nested configs are hard to read as raw text. Developers waste time hunting keys, copying fragile paths by hand, and losing context when switching tools.
Use cases
Debug API responses
Paste a REST or GraphQL payload and walk the tree to the failing field.
Inspect webhook bodies
Open a captured event and expand only the branches that matter.
Review config dumps
Browse environment exports and deployment manifests without pretty-printing in the terminal.
A JSON viewer turns opaque payloads into a navigable structure. BracketView's online JSON viewer lets you expand nested objects, jump to paths, copy values, and switch between tree and graph views — entirely in your browser. Paste an API response, explore keys without scrolling a wall of text, and share an encrypted snapshot when you need a second pair of eyes.
Open JSON ViewerPath:
$Type: objectNodes: 8Depth: 3Last parse duration: 4ms
Code examples
Copy a JSONPath from the tree
$.data.items[0].sku
Sample nested payload
{
"data": {
"items": [{ "sku": "A-1", "qty": 3 }]
}
}Key features
- Collapsible tree with type-aware coloring
- Graph view for relationship exploration
- Copy node value, path, or JSON snippet
- Search keys and values in the tree
- Path breadcrumbs and node statistics
- Upload .json files up to 5 MB (50 MB on Pro)
- Browser-side viewing — data stays local for core tools
How to
How to View JSON Online with BracketView
Inspect nested JSON in three steps using BracketView's free online viewer.
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Paste your JSON
Paste a payload into the editor. Invalid syntax is highlighted instantly.
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Open the Viewer tab
Switch to Viewer to expand the tree, copy paths, and explore the graph.
Frequently asked questions
What is a JSON viewer?
A JSON viewer displays structured JSON as a navigable tree or graph so you can inspect nested fields without reading minified text. BracketView's JSON viewer runs free in the browser.
Is the JSON viewer free?
Yes. Core viewing, formatting, and validation are free with no signup required.
Does viewing JSON send data to a server?
No. Tree and graph viewing run client-side. Optional features like encrypted snapshots and AI repair use a different path — see the privacy policy.
Can I search inside large JSON?
Yes. Use tree search to highlight matching keys and values, then copy the path of the match.
What is the best free online JSON viewer?
It depends on the job. JSONLint is a validator, JSON Editor Online is a classic tree editor, and JSONCrack is a graph visualizer. BracketView is a free online JSON viewer with tree and graph views plus formatter, JSONPath, jq, and diff in an ad-free app. See the comparison at bracketview.in/learn/best-json-viewer.
Privacy and security
Core viewing, formatting, validation, JSONPath, and jq run in your browser. Optional AI features, encrypted snapshots, and Webhook Tester send or store data when you use them. Review the privacy policy before pasting sensitive payloads into optional cloud features.
Related tools
Explore more JSON tools in the BracketView workspace.
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