Stop writing JSON schemas by hand. Paste your JSON payload and instantly infer a valid Draft-07 JSON Schema. Our generator runs completely offline in your browser, keeping your API contracts private.
Our tool recursively parses your JSON object and accurately infers data types including string, integer, number, boolean, array, and nested objects.
Use the generated schema to validate incoming HTTP requests in your backend (Node.js, Python, Go) or to define Swagger/OpenAPI documentation for your frontend teams.
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. It provides a clear, machine-readable contract for the shape of your data.
Our JSON Schema Generator outputs standard Draft-07 compliant schemas, which are supported by almost all major schema validation libraries (like AJV for JavaScript).