JSON to Tree Converter
Transform raw, nested JSON into an interactive, collapsible tree diagram. Features inline editing, syntax highlighting, path copying, and search filtering for developers.
About
JSON (JavaScript Object Notation) is the de facto standard for data interchange, yet raw JSON strings are often illegible to humans due to lack of formatting and deep nesting. This tool bridges the gap between machine-readability and human cognition by rendering JSON as a hierarchical, interactive tree.
Accuracy in data structure interpretation is critical for API debugging. A single misinterpretation of a data type (e.g., null vs undefined vs "") or a nested array index can lead to cascade failures in production logic. This visualizer strictly adheres to RFC 8259 standards, providing visual distinctions between primitives and structural types.
Formulas
The transformation from a linear string to a hierarchical DOM tree involves recursive descent parsing. The complexity of rendering a JSON tree is proportional to the number of nodes.
Where n is the number of tokens in the JSON string. The path lookup for dot-notation (e.g., data.items[0].id) operates on:
We strictly validate inputs to prevent XSS (Cross-Site Scripting) often found in naive innerHTML implementations, ensuring safe rendering of arbitrary user keys.
Reference Data
| Data Type | Visual Representation | RFC 8259 Standard | JavaScript Equivalent |
|---|---|---|---|
| Object | { } Curly Braces | Unordered collection of key/value pairs | Object |
| Array | [ ] Square Brackets | Ordered list of values | Array |
| String | "text" (Double Quotes) | Sequence of zero or more Unicode characters | String |
| Number | 123.45 | Integer or Floating point (no NaN/Infinity) | Number |
| Boolean | true / false | Logical truth values | Boolean |
| Null | null | Empty value | null |