JSON Schema Generator

Generate JSON Schema (Draft 2020-12, 2019-09, 07) from any JSON input. Auto-detects enums, infers types, and includes examples.

config.json

Generation Options

input.json
schema.json

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Frequently asked questions

Paste your JSON into the editor. Choose the schema version (Draft 2020-12, 2019-09, or 07). Enable options like required fields, examples, enum detection. The schema generates instantly.

No. All schema generation happens 100% client-side in your browser. Your data never leaves your machine.

Draft 2020-12 (default), Draft 2019-09, and Draft 07. The $schema URI is automatically set based on your selection.

When enabled, the tool analyzes string/number values that appear multiple times with a limited set of unique values (default threshold: 5) and creates enum constraints in the schema.

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