transform.ignlab.net
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Paste a sample JSON payload and get a draft-07 JSON Schema back, inferring types (string, integer, number, boolean, array, object) and marking every present key as required. A starting point for API contract validation, not a hand-tuned schema.
Every key present in the sample object is marked required in the generated schema — remove any that should actually be optional.
The schema for "items" is inferred from the array’s first element; mixed-type arrays should be reviewed and adjusted manually.
Draft-07 ($schema: http://json-schema.org/draft-07/schema#), broadly compatible with most validators.
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