BytePane

JSONPath Tester

Query and extract data from JSON using JSONPath expressions. Test paths in real-time.

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JSONPath Quick Reference

$Root object
$.keyChild property
$.arr[0]Array element by index
$.arr[*]All array elements
$.*All properties (wildcard)
$.a.b.cNested path

About JSONPath Tester

JSONPath is a query language for JSON data, analogous to XPath for XML. Originally proposed by Stefan Goessner in 2007, JSONPath allows you to navigate and extract data from complex JSON structures using path expressions. It is now an IETF standard (RFC 9535, published 2024). JSONPath is the most efficient way to extract specific values from deeply nested JSON API responses, configuration files, and data stores -- replacing dozens of lines of manual traversal code with a single concise path expression.

JSONPath Syntax Reference

JSONPath expressions start with $ representing the root element. Dot notation ($.store.books) and bracket notation ($['store']['books']) navigate through object properties. Array indexing uses brackets with zero-based indices ($[0]), wildcards ($[*]) select all elements, and slicing ($[0:5]) extracts ranges. The recursive descent operator (..) searches all levels of the hierarchy. Filter expressions ($[?(@.price < 10)]) select elements matching conditions.

JSONPath is supported across all major programming languages: jayway in Java, jsonpath-ng in Python, Newtonsoft.Json.Linq in C#, and various npm packages in JavaScript. Cloud platforms use JSONPath extensively: AWS Step Functions for state machine data flow, Kubernetes kubectl with -o jsonpath for output formatting, and Apache Kafka Connect for message transformation. This tester supports dot notation, bracket notation, array indexing, wildcard selection, and nested path resolution -- letting you validate your JSONPath expressions interactively before using them in production code.

Frequently Asked Questions

What is JSONPath?

JSONPath is a query language for JSON, similar to XPath for XML. It allows you to navigate and extract data from JSON structures using path expressions like $.store.books[0].title.

What JSONPath syntax is supported?

This tool supports dot notation ($.key), bracket notation ([0]), wildcards ([*] and .*), and nested paths. Enter $ as the root element and build your path from there.

Is my data secure?

Yes. All processing happens in your browser. Your JSON data is never sent to any server.

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