Is my JSON data sent to a server?

No. All evaluation is performed locally using the jsonpath-plus library in your browser. Even confidential JSON is safe to use.

Which JSONPath syntax is supported?

jsonpath-plus follows RFC 9535 (formerly the Stefan Goessner spec). Wildcards, recursive descent, filter expressions, and slices are all supported.

How is this different from json-formatter?

json-formatter formats and validates JSON and converts to YAML. This tool is a separate tool specifically for evaluating JSONPath expressions.

Are there performance limits?

Performance depends on browser memory. Very large JSON documents (multi-MB) may be slow. It is recommended to paste only the relevant portion of large payloads.

Does it require an internet connection?

Yes, to load the jsonpath-plus library from the jsDelivr CDN. Offline use is not supported.

🔎

jsonpath tester,

JSONPath-tester

Realtime evaluatie en accentuering van JSONPath expressies.
Ideaal voor het extraheren van specifieke velden uit API-reacties.

⚡

Real-Time Evaluation

See JSONPath results as you type

🎯

Match Results

View all matched values in formatted JSON

🔒

Fully Local

JSON data is never sent to any server

JSONPath Expression

JSON Data

Match Results

🔒JSON data is never sent to any server.* Note: Loads jsonpath-plus library from CDN.

about,

About

A developer tool for evaluating JSONPath expressions against JSON data in real time. Ideal for extracting specific fields from API responses and exploring data structures. Unlike the existing json-formatter (formatting & YAML conversion), this tool is purpose-built for evaluating and testing JSONPath expressions. Powered by the jsonpath-plus library (MIT, CDN).

how to,

How to Use

STEP 1

Paste JSON Data

Paste your JSON into the left panel. Use "Load Sample JSON" to try a demo dataset.

STEP 2

Enter a JSONPath Expression

Type a JSONPath expression in the input field. Use quick buttons to try common patterns.

STEP 3

Review & Copy Results

Matched values appear in the right panel. Click Copy Results to use them.

glossary,

Glossary

JSONPath: A query language for JSON data, similar to XPath for XML. Expressions like $.store.book[0].title navigate through the JSON hierarchy using dot notation.
Root ($): The starting point of any JSONPath expression, representing the entire JSON document.
Wildcard (*): Matches any element. $.store.* returns all children of the store object.
Recursive Descent (..): Searches all descendant nodes regardless of depth. $..author returns all author fields at any nesting level.
Filter Expression (?()): Filters elements by condition. $.store.book[?(@.price < 10)] returns books with price below 10.
Bracket Notation: Array index or key access. $.book[0] (first), $.book[-1] (last).
Slice (0:2): Range selection from an array. $.book[0:2] returns elements at index 0 and 1.
jsonpath-plus: An RFC 9535-compliant JavaScript library for evaluating JSONPath. MIT license, loaded via CDN.

faq,

FAQ

Q.Is my JSON data sent to a server?: No. All evaluation is performed locally using the jsonpath-plus library in your browser. Even confidential JSON is safe to use.
Q.Which JSONPath syntax is supported?: jsonpath-plus follows RFC 9535 (formerly the Stefan Goessner spec). Wildcards, recursive descent, filter expressions, and slices are all supported.
Q.How is this different from json-formatter?: json-formatter formats and validates JSON and converts to YAML. This tool is a separate tool specifically for evaluating JSONPath expressions.
Q.Are there performance limits?: Performance depends on browser memory. Very large JSON documents (multi-MB) may be slow. It is recommended to paste only the relevant portion of large payloads.
Q.Does it require an internet connection?: Yes, to load the jsonpath-plus library from the jsDelivr CDN. Offline use is not supported.

use cases,

Use Cases

🔧

API Response Field Extraction

Quickly test JSONPath expressions to extract specific fields from REST API JSON responses.

📚

Learning JSONPath Syntax

Interactively learn the JSONPath spec by trying built-in examples and observing results.

🧪

Creating Test Data Extraction Paths

Pre-validate JSONPath assertions before adding them to Postman or API test suites.

📋

Validating API Spec JSONPath Examples

Verify that JSONPath expressions written in API documentation actually work as described.

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Feedback/Verzoek sturen

Feedback sturen

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