What is JSONPath and how does it work?

JSONPath is a query language for JSON, similar to XPath for XML. It allows you to extract specific values from JSON data using path expressions like $.store.books[*].author to get all author names from a books array.

What JSONPath operators are supported?

This tool supports $ (root), .property (child access), [index] (array index), [*] (wildcard for all elements), and ..property (recursive descent to find matching properties at any depth in the JSON structure).

Is my JSON data safe when using this tool?

Yes, all JSONPath evaluation happens entirely in your browser using JavaScript. No data is sent to any external server. Your JSON data never leaves your computer.

JSONPath Query Tester

JSONデータに対してJSONPath式でクエリをテスト・実行します。

広告スペース

JSON入力

JSONPath式

How to Use the JSONPath Query Tester

This free online JSONPath tester lets you evaluate JSONPath expressions against your JSON data instantly. Paste your JSON into the input area, enter a JSONPath expression, and click "Execute" to see the matched results. All processing happens entirely in your browser with no data sent to any server.

Supported JSONPath Syntax

$ - Root object reference
.property - Child property access (dot notation)
[index] - Array index access (zero-based)
[*] - Wildcard matching all array elements or object values
..property - Recursive descent to find property at any depth

Common Use Cases

JSONPath is commonly used to extract specific data from complex JSON structures returned by APIs. For example, you might use $.data[*].name to extract all names from an array, or $..id to find every id field regardless of nesting depth. This tool is invaluable for testing queries before using them in code with libraries like Jayway JSONPath, json-path, or jq.

Tips for Writing JSONPath Expressions

Always start your expression with $ to reference the root. Use dot notation for simple property access and bracket notation for array indices. The recursive descent operator .. is powerful but can return many results from deeply nested structures. Test your expressions with sample data before applying them to production queries.

JSONPath Query Testerの使い方

このツールはJSONデータに対してJSONPath式を使ったクエリをブラウザ上でテスト・実行できます。JSONデータを入力し、JSONPath式を指定して「実行」をクリックすると、マッチした結果が表示されます。APIレスポンスからのデータ抽出やフィルタリングのテストに最適です。すべての処理はクライアントサイドで完結します。