JSON Tree Viewer Online – Explore JSON Data

Local only

Browse nested JSON objects and arrays, expand branches, and search keys or string values without uploading data.

Indent

71 chars · 4 lines

Two-way sync · Edit either side and the other updates automatically.

Valid JSON
2 keys1 arrays1 objects3 depth71 chars

JSON tree viewing guide

How to view JSON as a tree

Paste valid JSON into the viewer above to turn nested objects and arrays into an interactive tree. Expand only the branches you need, search keys and string values, and inspect the document locally in your browser.

Steps

  1. Paste JSON or import a text-based .json file.
  2. Confirm the Tree view is selected above the editor.
  3. Expand object and array branches to inspect nested values.
  4. Search for a key or string value and move between matching paths.

Explore nested objects and arrays

Tree view represents each JSON object and array as an expandable branch. Object properties use their keys as labels, while array items use numeric indexes so the original hierarchy remains visible.

The root branch opens automatically. Deeper branches remain collapsed until you expand them, which keeps complex API responses easier to scan than a fully expanded text document.

Search JSON keys and string values

Use tree search to find matching property names or string values. Selecting a result expands its parent branches, reveals entries beyond the first rendered batch, and moves focus to the matching path.

  • Search is case-insensitive.
  • Match navigation cycles through every matching path.
  • Unicode escape decoding can be enabled for displayed keys and strings.

Inspect large JSON locally

Wide branches are rendered in bounded batches instead of creating every row at once. Excessively deep documents are rejected before recursive tree rendering can destabilize the page.

Parsing, searching, and tree rendering happen in the browser, so API responses and configuration data are not uploaded to a viewer service.

JSON tree example

A nested JSON document becomes a hierarchy of expandable object properties and indexed array items.

JSON input

{
  "user": {
    "name": "Ada",
    "active": true
  },
  "roles": ["admin", "editor"]
}

Tree structure

$ {2}
  user {2}
    name  Ada
    active  true
  roles [2]
    0  admin
    1  editor

Common questions

Frequently asked questions

Does the JSON tree viewer upload my data?

No. JSON parsing, tree rendering, searching, and file imports run locally in your browser.

Can I search inside the JSON tree?

Yes. Search matches object keys and string values, and selecting a result expands the path that contains it.

Why are nested branches collapsed?

Only the root opens automatically so large documents remain readable. Expand any object or array branch when you need its children.

Can the viewer handle wide arrays or objects?

Yes. A branch initially renders up to 100 entries and provides a control to reveal additional entries in bounded batches.