JSON to JSON Schema
Generate a draft-style JSON Schema from example JSON data.
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All conversions happen in your browser. No data is sent to our servers - see why that matters. Share links encode your input in the URL itself; nothing is stored on a server. Press Cmd/Ctrl + Enter to convert.
How to Generate JSON Schema
Paste representative JSON and convert it. The tool infers object properties, required fields, arrays, and primitive types from your sample.
Frequently Asked Questions
Is this a validator?
No. It infers a JSON Schema from sample data. Use the JSON Validator for syntax checks.
How are arrays handled?
Array item schemas are inferred from the values inside the sample array.