JSON Path Extractor

JSON Path Extractor

Extract specific data from JSON using JSONPath expressions

JSON Input

Examples: $.store.book[*].price, $.users[0].name, $.*

Extracted Results

Enter JSON and a path expression, then click Extract

JSONPath Syntax Guide

$ - Root object
.property - Child property
[*] - All array elements
[0] - Specific array index
.* - All properties

What is JSON Path Extractor?

JSON Path Extractor uses JSONPath expressions to extract specific fields and values from JSON data. Supports standard JSONPath syntax ($.store.book[*].author), extracts nested objects, array elements, conditional filtering. Processing speed < 50ms (1MB JSON) with live preview and error hints. Ideal for API response parsing, config file extraction, data transformation. All processing runs locally in your browser.

▶Use Cases5 scenarios
  • ◆Parse API response data (extract specific fields for frontend display)
  • ◆Extract key parameters from config files (e.g., database connection strings)
  • ◆Data transformation and cleaning (extract needed fields from complex JSON)
  • ◆Debug JSON structure (verify JSONPath expressions are correct)
  • ◆Batch extract array elements (e.g., extract all user IDs)
▶How to Use4 steps
  1. 1Paste or upload JSON data in the input box
  2. 2Enter JSONPath expression (e.g., $.store.book[*].title)
  3. 3Click 'Extract' button to view results
  4. 4Copy extracted results or continue adjusting expression
▶Features8 features
  • ✓Supports standard JSONPath syntax ($.、[*]、[?()] etc.)
  • ✓Extract nested objects and array elements
  • ✓Conditional filtering ([?(@.price<10)])
  • ✓Live preview and error hints
  • ✓Processing speed < 50ms (1MB JSON)
  • ✓Supports large files (up to 10MB)
  • ✓Browser-based processing (no data upload)
  • ✓Responsive design (mobile/tablet/desktop)
▶FAQ11 questions
What is JSON Path Extractor?

An online tool that uses JSONPath expressions to extract specific fields and values from JSON data. Supports standard JSONPath syntax ($.store.book[*].author), extracts nested objects, array elements, conditional filtering. Processing speed < 50ms (1MB JSON) with live preview. Ideal for API response parsing, config file extraction. All processing runs locally in your browser.

What is a JSONPath expression?

JSONPath is a query language for JSON, similar to XPath for XML. Common syntax: $ for root object, . for child nodes, [*] for all array elements, [?()] for conditional filtering. Example: $.store.book[*].title extracts all book titles, $.users[?(@.age>18)] filters adult users.

What JSONPath syntax is supported?

Supports standard JSONPath syntax: $ (root object), . (child nodes), [*] (all array elements), [n] (nth element), [start:end] (array slice), [?()] (conditional filtering), .. (recursive descent). Examples: $.store.book[0].title, $.users[?(@.age>18)].name.

How fast is the processing?

Processing speed < 50ms (1MB JSON) with live preview. JSON under 10MB typically completes extraction within 200ms. Uses optimized JSONPath parser for excellent performance.

Is my JSON data uploaded to a server?

No. All processing runs locally in your browser using JavaScript to parse JSON. Data never leaves your device, suitable for sensitive API responses and config files. Zero server processing, 100% privacy protection.

What's the maximum JSON file size?

Maximum 10MB JSON file size. Recommended < 5MB per session for smooth experience. Browser memory limit typically > 100MB, but oversized JSON affects page performance. For very large files, recommend batch processing.

How do I extract all elements in an array?

Use [*] wildcard. Example: $.store.book[*] extracts all book objects, $.store.book[*].title extracts all book titles. You can also use [0,2,4] to extract specific index elements, or [0:5] to extract first 5 elements.

Is this tool free? Do I need to register?

Completely free, no registration, no login required. Open the webpage to use all features, no usage limits, no watermarks.

Can I use JSONPath with arrays of objects?

Yes. Use $.items[*].name to extract the "name" field from every object in the "items" array. You can also filter: $.items[?(@.price>10)].name returns names only where price exceeds 10.

What happens if the JSONPath expression is invalid?

The tool shows a red error message with the parser error details. The output is cleared until you fix the expression.

Does it support recursive descent?

Yes. Use .. to search at any depth. For example, $..price finds all "price" keys anywhere in the JSON tree.