About the JSON Path Tester
Extracting specific values or filtering items from deeply nested JSON documents can be tedious without query expressions. JSONPath is the standard query language for JSON, analogous to XPath for XML. This JSON Path Tester lets you craft and evaluate JSONPath queries in real time.
This tool is widely used by developers working with API integration platforms, QA engineers writing automated API assertions, and data analysts querying nested log exports. It supports root selectors ('$'), recursive descent ('$..price'), wildcard object projections ('$.store.book[*]'), array indexing ('$[0]'), and filter expressions ('[?(@.price < 20)]').
To use the tool, paste your JSON data in the left box, enter your JSONPath expression in the query bar, and click 'Evaluate JSONPath'. Matching items are displayed as formatted JSON with a live match count badge.
For instance, querying '$.store.book[*].title' across a bookstore catalog extracts a clean array containing only the book titles from every object in the collection.
A common JSONPath mistake is forgetting that array indexes are 0-based. Querying '$[1]' targets the second item in the array, not the first.
Tip: Use the built-in preset query buttons to quickly experiment with common JSONPath filtering and projection patterns.