Extract JSON Keys
Extract every key from JSON with full dotted paths instantly. Free online JSON key extractor for nested objects and arra
Keys will appear here...
How to Use Extract JSON Keys
- Paste your JSON: Paste any JSON object into the input box, or load the sample.
- Click Extract Keys: Press the Extract Keys button. Every key is listed with its full dotted path, one per line.
- Copy the key list: Copy the newline-separated key list for schema documentation and inspection.
About Extract JSON Keys
Extract JSON Keys walks the entire JSON structure and lists every key with its full path.
- Dotted Paths: Keys appear as address.city, projects.name — one per line.
- Array Awareness: Arrays are traversed without adding index noise to the output.
- Copy Ready: The key list is copied as clean, newline-separated text.
Useful for schema inspection, API documentation and comparing data structures.
Frequently Asked Questions
What does Extract JSON Keys do?
It walks the entire JSON structure and lists every key with its full dotted path — like address.city or projects.name — one key per line.
Why extract JSON keys?
To inspect API response schemas, compare data structures between endpoints, build documentation, or verify key naming conventions.
How are array keys handled?
Array items are traversed without adding index paths to the key list, so the output stays clean and unique.