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TypeScript-first schema validation with static type inference. Zod is a TypeScript-first schema declaration and validation library. I'm using the term "schema" to broadly refer to any data type, from a simple string to a complex nested object. Zod is designed to be as developer-friendly as possible. The goal is to eliminate duplicative type declarations. With Zod, you declare a validator once and Zod will automatically infer the static TypeScript type. It's easy to compose simpler types into complex data structures.
Features
- Zero dependencies
- Works in Node.js and all modern browsers
- Tiny: 8kb minified + zipped
- Documentation available
- Immutable: methods (e.g. .optional()) return a new instance
- Concise, chainable interface
- Functional approach: parse, don't validate
- Works with plain JavaScript too! You don't need to use TypeScript
Project Samples
