Dev Tools

JSON Tree Viewer

Paste JSON and explore it as an interactive, collapsible tree. Types are color-coded and paths appear on hover.

JSON Input
Tree View
stringnumberbooleannull
▾{
"name": "John Doe"
"age": 30
"active": true
▾"address": {
"street": "123 Main St"
"city": "Springfield"
"zip": null
}
▾"tags": [
0: "developer"
1: "designer"
]
▾"projects": [
▾0: {
"name": "Alpha"
"stars": 42
}
▾1: {
"name": "Beta"
"stars": 17
}
]
}
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About JSON Tree Viewer

View JSON as an interactive, collapsible tree so you can explore deeply nested objects and arrays without scrolling through raw text. Useful for inspecting API responses and config files where the structure matters more than the formatting.

How to use

  1. Paste or type your JSON into the input.
  2. Expand and collapse nodes to drill into nested objects and arrays.
  3. Read the key, type, and value of each node to understand the shape of the data.

Frequently asked questions

Is my JSON uploaded anywhere?
No. Parsing and rendering happen entirely in your browser — nothing is sent to a server.
What if my JSON is invalid?
The viewer reports the parse error and position so you can fix the syntax before exploring the tree.
How large a file can it handle?
It works comfortably with typical API payloads; very large files (tens of MB) may render slowly because everything runs client-side.