JSONPath Tester

Query, test, and evaluate JSONPath expressions (`$.store.book[*].author`, `$..price`, $[?(@.price < 10)]) against complex JSON documents. Displays live matched JSON nodes with syntax highlighting and match counts.

Why Use This Tool?

• API Response Inspection: Test JSONPath queries used in REST API assertions, Postman tests, or Kubernetes kubectl JSONPath filters.
• ETL Data Pipeline Testing: Verify JSONPath extraction expressions for Apache NiFi, Airflow, or Logstash pipelines.
• Deep JSON Extraction: Query nested JSON arrays and objects without writing custom JavaScript loops.

How to Use

1. Paste your JSON payload into the document editor.
2. Enter JSONPath expression (e.g. `$.users[?(@.active == true)].email`).
3. View matched result array and node matches in real time.

Real Working Example

Input:

JSON: { "store": { "book": [{ "title": "Book A", "price": 8.95 }, { "title": "Book B", "price": 12.99 }] } }
Query: $.store.book[?(@.price < 10)].title

Output Result:

Matches Found: 1
Result Array:
[
  "Book A"
]

Important Technical Details & Specifications

• JSONPath AST Query Engine: Supports root `$`, dot notation `.prop`, bracket `["prop"]`, wildcard `*`, recursive descent `..`, slice `[0:2]`, and filter expressions `[?()]`.
• Monaco/CodeMirror Editor: Syntax-highlighted code editor with live syntax error markers.
• 100% Client-Side Memory: Large JSON documents are queried locally without server uploads.

Related Data & Format Tools

• JSON Visual Tree Editor: Inspect and edit JSON structures visually.
• JSON Formatter: Prettify and validate JSON payloads.
• JSON Schema Validator: Validate JSON against schemas.