JSON Tree Viewer
Interactive JSON tree viewer with expand/collapse, syntax highlighting, and copy functionality
JSON
Viewer
Development
Tree
About JSON Tree Viewer
This interactive JSON tree viewer allows you to visualize and explore JSON data in a hierarchical tree format. Features include:
- Expand and collapse objects and arrays
- Multiple color themes for better readability
- Copy individual values or entire objects to clipboard
- Show/hide data types and object sizes
- Sort object keys alphabetically
- Customizable collapse levels
- Syntax highlighting and formatting
All processing happens in your browser - no data is sent to servers. Perfect for debugging APIs, exploring complex JSON structures, and understanding data relationships.
Frequently Asked Questions (FAQ)
Does JSON have schema?
JSON itself does not enforce a schema, but you can define schemas for JSON using standards like JSON Schema. Schemas help validate and describe the structure of JSON data.
Does JSON care about whitespace?
No, JSON ignores whitespace outside of string values. Whitespace is allowed for formatting and readability, but it does not affect the data.
Should JSON keys be lowercase or camel case?
JSON keys can use any case, but camelCase is common in JavaScript environments. Consistency is important; follow the conventions of your project or API.
Can JSON have comments?
No, standard JSON does not support comments. Any comments will cause a parsing error. Some tools allow comments in "JSON5" or similar extensions, but not in strict JSON.
Can JSON have duplicate keys?
No, JSON objects should not have duplicate keys. If duplicate keys exist, parsers will typically use the last occurrence and ignore previous ones.
Does JSON support tuples?
JSON does not have a native tuple type. Arrays in JSON can represent tuples, but all elements are treated as part of a list without enforced types or lengths.
Is JSON structured or unstructured?
JSON is considered a structured data format because it organizes data into objects and arrays with key-value pairs. However, it is flexible and can represent semi-structured data.
When not to use JSON?
Avoid using JSON for binary data, very large datasets, or when strict typing and schema enforcement are required. Formats like Protocol Buffers or XML may be better in those cases.
Why is JSON a popular format?
JSON is popular because it is simple, human-readable, language-independent, and easy to parse. It is widely supported in web APIs and modern programming languages.
Did JSON replace XML?
JSON has largely replaced XML in web APIs and modern applications due to its simplicity and ease of use. However, XML is still used in some domains requiring complex schemas or document markup.