🛤

JSONPath Tester (Query JSON)

Test JSONPath queries against JSON samples. Supports recursive descent, slice, basic filters. Great for picking data from API responses, debugging LLM structured output.

All tools

JSON

JSONPath query

Output

JSONPath syntax

$	Root object
$.foo / $["foo"]	Property foo
$.foo.bar	Nested property
$[0]	First array element
$[-1]	Last element
$[*]	All elements
$[0:3]	Slice 0..2
$..price	Recursive — every `price` at any level
$.items[?(@.price > 100)]	Filter (subset)

Test JSONPath queries against a JSON sample. Implements a JSONPath subset (RFC 9535 draft). Pick data from API responses, debug LLM structured output.

What is JSONPath?

JSONPath = "XPath for JSON". A query syntax to extract slices of data from JSON objects/arrays. Common in:

Postman: API response assertions — $.data.users[0].id === 1.
jq (CLI): similar patterns for command-line JSON.
AWS CLI: --query 'Reservations[*].Instances[*].PublicIpAddress'.
OpenSearch / Elasticsearch: query nested fields.
LangChain / LLM: extract structured output from LLM responses.

Syntax cheat sheet

$ — root.
$.foo or $["foo"] — property.
$[0] — index, $[-1] — last.
$[*] — all elements/properties.
$[0:3] — slice.
$..price — recursive descent (every price at any level).
$.items[?(@.price > 100)] — filter.

Real-world example

// API response
{
  "store": {
    "books": [
      { "title": "AI for Everyone", "price": 350000 },
      { "title": "Sapiens", "price": 280000 }
    ]
  }
}

// Get all titles:
$.store.books[*].title  // ["AI for Everyone", "Sapiens"]

// Books with price > 300k:
$.store.books[?(@.price > 300000)]

// Recursive — every price in the document:
$..price  // [350000, 280000]