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Testador de Expressão JSONPath

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Testador de Expressão JSONPath

Test and debug JSONPath expressions against your JSON data in real-time. Paste your JSON, write an expression, and instantly see matched results with syntax highlighting and a navigable tree view.

Como usar

Paste your JSON data in the input panel and type a JSONPath expression. Results update in real-time as you type. Use the tree view to visually inspect your JSON structure and see which nodes match your expression. Try the built-in examples to learn JSONPath syntax quickly.

Características

Real-time evaluation – Results update instantly as you type your expression
Syntax highlighting – Color-coded JSON for easy reading
Interactive tree view – Navigate JSON structure with matched nodes highlighted
Common expression examples – Built-in templates for learning JSONPath syntax
Full JSONPath support – Dot notation, bracket notation, wildcards, filters, and recursive descent
Error feedback – Clear error messages for invalid expressions

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 Perguntas frequentes

What is JSONPath and how does it differ from XPath?

JSONPath is a query language for extracting data from JSON documents, inspired by XPath for XML. While XPath navigates XML's tree structure with axes like parent, child, and sibling, JSONPath focuses on JSON's simpler object/array model using dot notation and bracket syntax. JSONPath uses $ for the root, dot notation for properties, and bracket notation for array indices and filters. It lacks some XPath features like reverse axes but is simpler to learn and use.
What are recursive descent operators in JSONPath?

The recursive descent operator (..) searches through all levels of a JSON document to find matching keys, regardless of their depth. For example, $..name finds every 'name' field anywhere in the document. This is powerful for querying deeply nested or irregularly structured data where you know what field you want but not exactly where it lives. It's equivalent to XPath's // operator.
What is the difference between JSONPath filter expressions and array slicing?

Array slicing uses Python-style notation [start:end:step] to select ranges of elements by position — for example [0:3] selects the first three elements. Filter expressions use [?(@.condition)] syntax to select elements based on their content — for example [?(@.price < 10)] selects objects where the price field is less than 10. Slicing is positional while filtering is conditional.