JSONPath Tester Online
Test, validate, and evaluate JSONPath expressions online. Extract specific keys, values, and array elements with real-time result previews powered fully locally in your browser.
What is JSONPath?
JSONPath is a standardized syntax for query and filter operations inside JSON objects, analogous to what XPath is for XML documents. It provides a clean, declarative language to drill down through nested arrays, slice sub-lists, and filter structures based on logical conditions.
Real-Time Evaluation
Our playground calculates extraction results immediately on keydown. Enter any query expression—such as $.store.book[*].author—and the result pane instantly populates with the isolated matches, detailing target nodes with accurate syntax highlighting.
Syntax Cheat Sheet Reference
$: The root object or document.@: The current element being evaluated in filtering scripts..or[]: Child operators to select named parameters...: Deep scan recursive wildcard to query items at any nested depth.*: Wildcard operator to match any properties or indices.?(): Evaluates filter criteria (e.g.?(@.price < 10)).
Frequently Asked Questions
Is my query processed on your server?
No. All JSONPath parsing and AST evaluation runs inside your local browser runtime. No data leaves your machine.
How do I extract a flat list of keys?
You can use deep scanning wildcards ($..*) to match all values at any level, or head to our JSON Flatten page to convert the entire tree into flat key-value pairs instantly.
Related JSON Suit Utilities
Learning Resources & Tutorials
Master the intricacies of parsing and schemas for JSONPath Tester.
Suggested Learning
Intro to JSON Schema Specification
Designing Safe API Payloads using JSON Linter
Debugging JSON syntax issues instantly
Integration Examples
Typical developer setting schema.
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"port": { "type": "integer", "default": 3000 }
}
}Developer Workflow
How JSONPath Tester fits inside the development and debugging lifecycle.
Validate & Lint
Verify syntactic validity
Format & Pretty
Indentation & visualization
Search & Query
Query with JSONPath/Search
Validate Schema
Check business logic compliance