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GeekFormat

JSONPath Query

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Features

  • Precise data extraction: supports standard JSONPath syntax, including wildcards, recursive descent, and slice operations for precise data targeting
  • Smart filtering and assertions: supports script expressions for data filtering and logical assertions, greatly improving API testing efficiency
  • Dual-view interactive display: one-click switch between raw JSON view and structured table view for easy viewing and exporting of extraction results
  • Real-time syntax highlighting: provides real-time syntax highlighting and error prompts to help developers quickly fix query expressions
  • Local high-speed processing: pure browser local computation, ensuring absolute security of sensitive test data and business privacy

FAQ

How do I use JSONPath to precisely extract specific fields from deeply nested JSON?

Simply enter a standard JSONPath expression in the query box (e.g., `$.store.book[0].title`), and the tool will quickly locate and extract deep data through hierarchical traversal. Compared to manually expanding large JSON files, this approach greatly improves data location efficiency, making it ideal for handling complex API response data.

Does it support wildcards or filters for complex conditional queries?

Fully supported. You can use wildcards (*) to match any field, or script expression filters (?()) for advanced filtering. For example, entering `$..book[?(@.price < 10)]` will instantly filter all books priced under 10. The tool highlights matching results in real-time and supports intuitive viewing in table view.

How can this tool help me with API automation testing and assertions?

In API automation testing, you can paste the API response JSON into the tool and write JSONPath expressions as test assertions. By quickly verifying whether the returned result meets expectations (e.g., checking if `$.code` equals 200), you can rapidly troubleshoot interface logic errors, making it a powerful assistant in Postman or JMeter testing workflows.