Filtering an array of objects
people[?city=='London'].name
A JSON array of just the "name" field for every person whose city is London.
JSON Query Tester (JMESPath)
Test a JMESPath query against a JSON document and see the extracted result instantly.
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About this tool
JMESPath is the query language AWS's own CLI uses to filter and reshape JSON output — the same expression works here, against any JSON, before it ends up baked into a script.
How to use it
- Paste a JSON document.
- Write a JMESPath expression, or click one of the examples to see the syntax.
- Run it and see the extracted result, formatted.
Examples
Common problems
- A filter expression returns nothing, even though matching items exist.
- String literals in a filter need backticks or quotes depending on context — `` `London` `` and `'London'` both work as a literal, but a bare word is read as a field reference, not a value.