Free Online JSONPath Evaluator Tool

1. Paste your JSON into the input box.
2. Type a JSONPath expression such as $.items[*].id.
3. Matches appear instantly, each with its resolved path.
4. Refine the expression using wildcards (*) or recursive descent (..).
5. Copy the working expression into your code's JSONPath library.

JSONPath is a query language for JSON, deliberately modeled on XPath for XML. The root document is $, a dot or bracket selects a child, square brackets with a number index into an array, * is a wildcard over array elements or object values, and .. descends recursively through the whole tree. So $.store.book[*].title pulls every book title regardless of how many books there are.

This evaluator parses your JSON in the browser, tokenizes the expression, and walks the data to collect matches. It supports the core syntax — root, dot and bracket child access, numeric array indexes, wildcards, and recursive descent — and shows each match alongside the concrete path that produced it, so you can see exactly which nodes a query selects. Complex filter scripts (the [?(...)] form) are outside this lightweight implementation.

The point is to test a query before you bake it into code: confirm that an expression hits the fields you expect in a real API response, then copy it into your application's JSONPath library. Because the JSON is parsed locally, you can safely test against payloads that contain real or sensitive data.