How to use this tool
- Paste JSON, upload a local file, or load a CORS-enabled public URL.
- Run Build JSON tree and expand only the branches you need.
- Review the result, then copy it or download it with the correct file type.
Private by default
Interactive JSON Tree Viewer
Navigate objects and arrays without losing the original code representation.
Your data stays in this browser
UTF-8Ln 1, Col 1
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Browser-only autosaveInputs and settings stay saved only in this browser and return after a reload. Turn on Clear saved data to keep this tool session-only.
Your data stays in this browserInstantNo server round trips
PrivateBrowser-side processing
AuditableDocumented semantics
PortableCorrectly typed downloads
Category
JSON Viewer: How to use this tool
Explore valid JSON as a collapsible tree with structural counts and depth metrics.
Navigate objects and arrays without losing the original code representation.
Open guide and examples
Example to try
Input JSON
{
"project": "jsonformatters.org",
"status": "ready",
"features": [
"format",
"validate",
"convert"
],
"settings": {
"indent": 2,
"sortKeys": false,
"localOnly": true
},
"documents": [
{
"id": 101,
"name": "launch-config.json",
"valid": true
},
{
"id": 102,
"name": "sample-data.json",
"valid": true
}
],
"lastError": null
}Result
{
"project": "jsonformatters.org",
"status": "ready",
"features": [
"format",
"validate",
"convert"
],
"settings": {
"indent": 2,
"sortKeys": false,
"localOnly": true
},
"documents": [
{
"id": 101,
"name": "launch-config.json",
"valid": true
},
{
"id": 102,
"name": "sample-data.json",
"valid": true
}
],
"lastError": null
}Learn
Frequently asked questions
Does this tool upload my JSON?
No. The transformation runs in your browser. URL import contacts only the address you explicitly enter.
What happens when the JSON is invalid?
The editor marks the likely location and keeps stale output out of the result pane.
What does JSON Viewer produce?
It creates code, tree, and structure views from the same current parsed value.
What limitation applies to JSON Viewer?
The viewer caps depth and node count, rejects duplicate object names, and rejects numbers that JavaScript cannot represent exactly.