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
Debugging API responses to extract specific fields, validating nested JSON structures, learning JSONPath syntax interactively, and selectively extracting sub-trees from large JSON documents for data transformation.
JSONPath Query Engine
Uses the jsonpath-plus library (RFC 9535 compliant) running in a Web Worker. JSONPath expressions navigate JSON structures using dot notation ($.store.book), bracket notation ($['store']['book']), wildcards (*), recursive descent (..), and filter expressions (?(@.price < 10)).
Fun Fact: JSONPath was first proposed by Stefan Gössner in 2007 as a lightweight XPath equivalent for JSON. It's now standardized as RFC 9535 by the IETF.
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