Paste any JSON and get a draft-07 JSON Schema inferred from your data. The schema is built recursively: objects get a properties map plus a required list of all present keys, arrays get an items subschema inferred from the first element, and scalars are typed as string, integer, number, boolean or null. The schema title is configurable and defaults to Root.
This is a fast way to bootstrap validation for an API contract or config file from a real example, then tighten it by hand. The whole tool is plain JavaScript running locally in your browser — no build step, no server, no upload — so it is safe for private or proprietary payloads.
JSON FormatterJSON to TypeScriptJSON to ProtobufJSON to MySQL