JSONPath Tester

Overview

• Evaluates a JSONPath expression against the JSON you enter and lists the matching values along with each one's normalized path (e.g. $['store']['book'][0]).

• Supports common JSONPath syntax including wildcards (*), recursive descent (..), and filter expressions (conditions like ?(@.price > 10)).

• Evaluation uses the jsonpath-plus library, and processing happens entirely in your browser.

Usage

1. 1

   Enter the target JSON into the JSON field.

2. 2

   Enter the expression to evaluate into the JSONPath expression field (e.g. $.store.book[*].title).

3. 3

   Click the "Evaluate" button to see the list of matching values and paths.

Example

JSONPath expression: $.store.book[?(@.price > 15)].title

"Book B" (path: $['store']['book'][1]['title'])

Use Cases

• Building and checking a JSONPath expression to extract a specific value from an API response, before implementing it

• Trying out an expression to extract only data matching certain conditions from a config file or log JSON

• Checking whether a JSONPath expression returns the expected value while debugging code that uses a JSONPath library

FAQ

Notes

• Filter expressions (?()) are evaluated internally as JavaScript expressions. Do not run untrusted JSONPath expressions.

• Invalid JSON is treated as a syntax error.