How to Test JSONPath Expressions
Step-by-step guide to writing and testing JSONPath queries against real JSON data using the DevHexLab JSONPath Tester.
Tool Used
JSONPath Tester
Open the JSONPath Tester
Navigate to /tools/json/json-path-tester.
Paste your JSON document
Paste any valid JSON into the document panel. You can use the sample data button to load an example if you want to experiment before using your own data.
Write a JSONPath expression
Enter your JSONPath expression in the expression field. Start with $ to reference the root. For example, $.store.book[*].author returns all author values in a nested book array.
Review matching results
The results panel updates instantly showing all values matched by the expression. If no results appear, check for typos in key names or use the wildcard $..fieldName to search recursively.
Refine and copy
Adjust the expression until you get the expected results, then copy the expression to use in your code, pipeline, or Postman test script.
All done!
You are ready to use JSONPath Tester like a pro.