JSON Schema to Validator
Convert JSON Schema into TypeScript validation code for Zod, Valibot, or TypeBox. Everything runs locally.
Paste a JSON Schema and click Generate to produce Zod, Valibot, or TypeBox validation code.
JSON Schema
TypeScript validator
What this validator generator does
Turn JSON Schema into readable TypeScript validation code for Zod, Valibot, or TypeBox. Generated code contains no embedded data.
Frequently asked questions
Which validation libraries are supported?
Zod, Valibot, and TypeBox.
How does it work?
Paste a JSON Schema and the tool emits the matching TypeScript validator code with the correct types and constraints.
Does it upload my schema?
No. Generation runs entirely in your browser.
Does JSON Schema to Validator upload my data?
No. JSON Schema to Validator runs entirely in your browser — your input never leaves this page.
Is JSON Schema to Validator free to use?
Yes. JSON Schema to Validator is completely free, with no account and nothing to sign up for.