JSON Path & Key Extractor
Query and extract nested properties from JSON data structures using key paths.
JSON Path & Key Value Extractor
Query and extract nested properties from JSON data structures using dot notation paths.
About JSON Path & Key Extractor
The JSONPath Query & Extractor tool parses and evaluates JSONPath expressions ($..book[?(@.price < 10)]) against complex JSON documents in real time. Extract nested fields, filter by conditions, and test API extraction queries effortlessly.
How to Use JSON Path & Key Extractor
Step 1
Paste your JSON data into the editor.
Step 2
Enter your JSONPath expression in the query input bar (e.g. $.items[*].name).
Step 3
View the extracted match results instantly on the right.
Step 4
Click "Copy Result" to export matched data.
Practical Use Cases for JSON Path & Key Extractor
API Response Querying & Assertions
Test JSONPath extraction expressions for automated API tests in Postman, Playwright, or Cypress test suites.
Deep Nested Property Extraction
Extract specific data fields or filtered sub-arrays from megabyte-sized JSON payloads without writing custom scripts.
Input & Output Examples
Extracting All Author Names from Store
JSONPath: $.store.book[*].author\nJSON: {"store":{"book":[{"author":"Nigel"},{"author":"Evelyn"}]}}["Nigel", "Evelyn"]
Key Features & Performance
- ✓Real-time JSONPath syntax evaluation and instant result updates.
- ✓Supports standard JSONPath syntax: $, @, ., .., *, [], and ?() filter expressions.
- ✓Matched items counter and formatted output view.
- ✓1-Click Copy extracted JSON results.
- ✓100% Client-Side processing in browser memory.
- ✓Includes JSONPath cheat sheet with common query patterns.
Key Terminology & Definitions
JSONPath
A query language for JSON, similar to XPath for XML, allowing targeted extraction of deeply nested properties and filtered lists.
Recursive Descent (..)
A JSONPath operator that searches all child and descendant nodes matching a given property name throughout the entire document hierarchy.