JSON Path Finder

Querying JSON with JSONPath

JSONPath is a small query language for pulling values out of a JSON document, in the same spirit that XPath selects nodes from XML. The root of the document is $, you walk into objects with dot notation, and you index into arrays with brackets. So$.store.book[0].title reads "from the root, into store, into book, take the first element, and give me its title."

Beyond a single path

The power shows up with wildcards and filters. $.store.book[*].authorcollects every author across the array. The recursive descent operator.. searches at any depth, so $..price finds every price in the document regardless of where it is nested. Filter expressions narrow results by condition, which turns a path into a tiny query rather than a fixed lookup.

Example

Given this document:

{
  "store": {
    "book": [
      { "title": "A", "price": 10 },
      { "title": "B", "price": 25 }
    ]
  }
}

The expression and its result:

$.store.book[0].title   ->  "A"
$.store.book[*].price   ->  [10, 25]

FAQ

How do I get the last array element? Most implementations accept [-1] for the last item, and a slice like [0:2] for a range, mirroring Python-style indexing.

Can I filter by value? Yes, with a filter expression such as $.store.book[?(@.price > 15)], where@ refers to the current item being tested.

Is JSONPath standardized? It is now specified in RFC 9535, but older libraries differ on edge cases like filter syntax and whether a query returns a single value or always an array.