JSON Path Query Tool
Query JSON documents using JSONPath expressions. Validate JSON, test path queries, and see matching nodes with their paths — all client-side in a Web Worker.
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Applications
Debug API responses by extracting specific fields, validate complex JSON structures against expected shapes, transform data by selecting sub-trees, and learn JSONPath syntax with live feedback. Useful for QA testing, data analysis, and building documentation examples.
JSONPath Syntax
JSONPath is a query language for JSON, similar to XPath for XML. Use $ for the root, .property for object access, [*] for array iteration, .. for recursive descent, and ?(@.field op value) for filters. For example, $..book[?(@.price < 10)] returns all books with a price less than 10.
Fun Fact: JSONPath was first proposed by Stefan Gössner in 2007 as a way to navigate JSON structures. It has since been adopted by libraries in nearly every major programming language and is a key tool for working with JSON APIs.
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