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