JSON Schema Builder
Infer a draft-07 JSON Schema from a sample JSON value.
Processing stays in your browser. An inferred schema reflects one sample. Review required fields, mixed array types, constraints, and optional values yourself.
How to use the json schema builder
Infer a draft-07 JSON Schema from a sample JSON value. Complete the sample json fields above, or upload a UTF-8 text file for the first field. Choose Run tool, review the output, then copy or download the result.
Example
A sample age of 30 produces an integer property in the schema.
Good to know
An inferred schema reflects one sample. Review required fields, mixed array types, constraints, and optional values yourself.