JSONPath Query Tester & Extractor
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Writing and debugging JSONPath expressions against a large or unfamiliar JSON document is much easier with instant feedback than trial-and-error in code. This JSONPath tester lets you paste your JSON data, write a JSONPath query, and immediately see which elements match, so you can refine your expression before dropping it into production code. It's built for developers working with APIs, log processors, and automation tools like API testing frameworks that rely on JSONPath for extracting specific fields. Complex filters, wildcards, and array slicing are all supported so you can test real-world queries, not just simple lookups. The evaluator runs entirely in your browser, keeping your JSON private with no upload, and there's no signup required. Paste your JSON and query below to see live matched results.
Features
- Live evaluation of JSONPath expressions against pasted JSON
- Supports wildcards, filters, and array slicing syntax
- Highlights matched nodes directly in the JSON structure
- Shows extracted results as a formatted JSON array
- Displays query errors for invalid JSONPath syntax
- Common JSONPath syntax cheat sheet and examples
- Works with deeply nested and large JSON documents
- Fully client-side execution with no data upload
Why use this jsonpath query tester?
- Get instant feedback while iterating on a query
- Keeps sensitive JSON data private with local evaluation
- Accurately matches JSONPath semantics used in real libraries
- No setup needed - test queries directly in the browser
- Completely free with unlimited testing
Frequently asked questions
What is JSONPath used for?
JSONPath is a query language for JSON, similar to XPath for XML, letting you select and extract specific values or elements from a JSON document using path expressions.
How do I write a basic JSONPath expression?
A basic expression starts with $ for the root, followed by dot or bracket notation, such as $.store.books[0].title, to navigate to a specific value.
Does this tool support JSONPath filters like [?(@.price<10)]?
Yes, filter expressions with comparison operators are supported so you can select array items matching a condition.
Can I test wildcard queries?
Yes, wildcards like $.store.*.price are supported to match all values at a given level.
Is my JSON data uploaded when testing a query?
No, both your JSON data and JSONPath expression are evaluated entirely in your browser, with nothing sent to a server.
What happens if my JSONPath expression matches nothing?
The tool returns an empty result set and does not throw an error, so you know your query is valid but has no matches.
Can I use this to test queries for API testing frameworks?
Yes, since it follows standard JSONPath syntax, expressions you validate here can be reused in tools like Postman, REST-assured, or custom scripts.
From the blog
JSONPath Queries: Finding Data in Big JSON Files
A practical JSONPath guide: selectors, wildcards, slices and filter expression syntax, with worked examples for pulling data out of large JSON API responses.
JSON Arrays vs Objects: When to Use Each
JSON array vs object: how they differ, when to use each, why order and keys matter, and how to model lists, maps and nested JSON so clients stay easy to write.