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Paste a JSON object or array and instantly get a draft-07 JSON Schema with required fields, types, and nested structure inferred from your data.
This json schema generator runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
Draft-07 - widely supported by Ajv and others.
Same browser-only philosophy. Free, no signup, no upload.
Beautify, validate, and minify JSON with sortable keys, exact error positions, and a one-click copy.
Explore a JSON Schema as a collapsible tree with descriptions, types and examples.
Generate realistic fake JSON for tests, mocks, and seed data.
Build a mock JSON response with status, headers, and body.
Validate JSON syntax with exact line and column for every error.
Strip whitespace from JSON to produce a single compact line.
We design and ship internal tooling, dashboards, and customer-facing utilities. Tell us what you need and we'll scope it.