JSON Schema Extractor

Paste or load JSON and get back the minimal JSON Schema that describes it — structure only, none of your data.

Your JSON never leaves your browser. The whole extraction runs on this page: nothing is uploaded, logged, or saved — not to a server and not to browser storage. Close the tab and it is gone, so it is safe to paste sensitive data here. The schema describes names and types only; no values from your JSON appear in it.
Paste JSON anywhere on this page to fill the box and extract automatically  ·  press Return afterwards to copy the schema  ·  use Extract Schema after editing the JSON by hand