Overview
Zod is a TypeScript-first validation library that enables you to define schemas for validating data—from simple strings to complex nested objects. It provides static type inference, meaning the parsed result is both validated and type-safe at compile time.
The library is lightweight (2kb gzipped core), has zero external dependencies, and works across Node.js and all modern browsers. Zod features an immutable API, built-in JSON Schema conversion, and a concise interface that works with both TypeScript and plain JavaScript.
Zod has a thriving ecosystem of integrations and libraries, including popular projects like tRPC for end-to-end typesafe APIs and React Hook Form for hook-based form validation.
Key features
- Zero external dependencies
- 2kb gzipped core bundle
- Static type inference
- Works in Node.js and browsers
- Immutable API
- Built-in JSON Schema conversion
- Extensive ecosystem support
- Lightweight and minimal footprint
- Type-safe validation with TypeScript integration
- No external dependencies
- Works across Node.js and modern browsers
- Rich ecosystem of integrations
- Concise and intuitive API
- Requires TypeScript strict mode enabled
- TypeScript v5.5+ required for official support
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