JSON to Zod.
Generate a Zod schema from sample JSON. Validate untrusted input at runtime — no guessing. Runs entirely in your browser.
Zod
JSON → Zod
Idle
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Frequently asked questions.
- What is Zod?
- Zod is a TypeScript-first runtime schema library. Define `z.object({...})` once, get both a runtime validator and an inferred TypeScript type.
- How is this different from generating TypeScript types?
- TypeScript types vanish at compile time. Zod schemas exist at runtime — they can `.parse()` incoming data and throw on shape mismatches. Use this when you do not trust the source of your JSON.
- Does my JSON leave my browser?
- No. The generator runs in your browser. There is no server.
- Can I edit the generated schema?
- Yes — the output is just TypeScript. Tighten the types (e.g., `z.string().email()`), add refinements, rename keys.
More JSON tools.
- FormatPretty-print JSON with line-accurate errors. Sort keys on demand.
- ValidateCheck a JSON document against a JSON Schema. Per-path error messages.
- MinifyStrip whitespace and shrink your JSON payload. Reports bytes saved.
- Tree ViewBrowse JSON as a collapsible tree. Drill into nested data without scrolling.
- Semantic DiffCompare two JSON files by structure. Per-path adds, removes, modifications.
- JSONPath / JMESPathRun live JSONPath and JMESPath queries against your JSON.