JSON Schema Generator
Generate a JSON Schema from a sample JSON document.
Processed locally in your browser. Nothing you enter is uploaded or stored.
Overview
Infers a draft-07 JSON Schema from a sample JSON document — a starting point to refine, not a full schema authoring tool.
How to use it
- 1Paste a representative JSON sample.
- 2Copy the generated schema and adjust constraints (formats, min/max, enums) by hand as needed.
Tips
- Every field from the sample is marked required by default since the generator can't know which fields are actually optional from a single example — remove any that shouldn't be required.