JSON 树查看器

How It Works

1. Paste your JSON: Drop any JSON string — object, array, nested structure — into the input field.
2. Explore the tree: The JSON renders as an interactive collapsible tree. Click any node to expand or collapse its children.
3. Navigate and inspect: Find specific keys or values by expanding branches. Deep-nested data becomes easy to read at a glance.

Why Use JSON Tree Viewer?

Raw JSON from APIs, config files, and databases is notoriously hard to read when it contains deeply nested structures. A JSON tree viewer transforms flat text into a hierarchical visual map where you can instantly see the data shape, spot missing keys, trace nested paths, and understand the structure without mentally parsing brackets and commas. It's an essential tool for API debugging, data exploration, and schema understanding.

Features

• Interactive tree: Expand and collapse any branch to focus on the part of the data you need.
• Syntax highlighting: Keys, strings, numbers, booleans, and null values are color-coded for quick scanning.
• Deep nesting support: Handles arbitrarily nested objects and arrays of any size.
• Error detection: Invalid JSON is flagged with a clear error message before rendering.
• Browser-based: No server uploads — your JSON data stays entirely in your browser.

Frequently Asked Questions

Is there a size limit on JSON input?

There is no hard limit enforced by the tool. Performance depends on your browser and device. Very large JSON files (several MB) may render slowly, but typical API responses and config files work instantly.

Can I edit the JSON in the tree view?

This tool is focused on viewing and exploring JSON structure. To edit JSON, use the JSON Formatter tool which provides a full editor alongside the formatted output.

Does it support JSON with comments (JSONC)?

Standard JSON does not allow comments, and most parsers (including this tool) will flag them as errors. Strip comments before pasting, or use a JSONC-aware editor for commented JSON.