JSON Key Extractor

Extract unique keys from JSON (optionally nested paths) and export as a list.

Fast processing • Browser-based • Easy copy and download

Workspace

Paste data, upload a file, and produce clean output instantly.

Include nested paths

Input

Output

Processed Locally

Your file never leaves your device. Everything is processed in your browser — we never see or store your data.

Frequently Asked Questions

JSON Viewer

View JSON as an expandable tree with a raw toggle for quick inspection.

JSON Path / Query Tester

Run a path query on JSON and extract matching values (best-effort JSONPath-like syntax).