Zod

What it does

Zod lets you define what your data should look like and validates it at runtime. Great for validating form inputs, API responses, or any data coming from outside your app.

When to use it

Use this when you need to validate form data or external API responses in a TypeScript project.

Real example

You have a signup form and want to validate that email is valid and password is at least 8 characters before submitting. Prompt: 'Use Zod to define a schema with z.object({ email: z.string().email(), password: z.string().min(8) }). Parse the form data on submit. If it fails, display the error messages next to the inputs.'

Good to know

Works beautifully with TypeScript. Often used with form libraries like React Hook Form.

Alternatives

Install

Use cases

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Category

Utilities & helpers