JSON to Zod v4 Schema
Infer sample shapes, unions, nullable and sparse object keys. Samples cannot establish every valid value; inspect schemas. The __proto__ key is rejected because Zod objects skip it. No code runs.
Enabling local controls…
Results
Review the settings and run. Editing inputs clears old results.
Processing model and limits
Infer sample shapes, unions, nullable and sparse object keys. Samples cannot establish every valid value; inspect schemas. The __proto__ key is rejected because Zod objects skip it. No code runs.
Data and model checked: Official reference ↗
How to use this tool
Load the example, confirm field units and processing rules, then run locally. Editing any input clears the old result. Copy or download the complete output explicitly.
When not to use it
Infer sample shapes, unions, nullable and sparse object keys. Samples cannot establish every valid value; inspect schemas. The __proto__ key is rejected because Zod objects skip it. No code runs.