JSON Key Extractor
Extract key paths from JSON
π 100% client-side β your data never leaves this pageJSON Input
Extracted Paths
Key paths will appear here
π 100% client-side
About this tool
Extract dotted key paths from nested JSON objects and arrays to quickly inspect data structure. Ideal for API debugging, ETL mapping, schema planning, and analytics event validation where understanding field hierarchy is critical.
Frequently Asked Questions
Can it parse both objects and arrays?
Yes. The extractor handles nested objects and array paths with [] notation.
What happens with invalid JSON?
You will see an explicit parse error and no paths are generated until syntax is fixed.
Is output deduplicated?
Yes. Repeated paths are deduplicated and sorted for easier reading.