JSON Structure Stats
Inspect JSON structure locally: nodes, max depth, arrays, type histogram, and duplicate keys.
All processing on this page runs locally in your browser unless noted otherwise.
Local offline processing — data is never uploaded
How to use
- Paste or upload JSON.
- Run analyze to build the report.
- Copy or download the text report.
Example
{
"id": 1,
"name": "Ada",
"tags": ["json", "tools"],
"meta": { "active": true, "score": null }
}FAQ
How are duplicate keys detected?
The raw text is scanned with a JSONC visitor, so duplicate object keys are flagged even if parsers keep the last value.
Does analysis upload data?
No. Everything runs in your browser via Web Worker.