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colinhacks/zod

📈 Trending42,704TypeScriptAudience · developerComplexity · 2/5ActiveLicenseSetup · easy

TLDR

TypeScript library that validates data against schemas you define, automatically inferring types so your editor catches errors before runtime.

Mindmap

mindmap
  root((repo))
    What it does
      Runtime validation
      Type inference
      Schema definition
    Use cases
      Form validation
      API responses
      External data
    Tech stack
      TypeScript
      Node.js
    Key features
      Type-safe
      Editor support
      Composable schemas

Things people build with this

USE CASE 1

Validate form submissions before sending to your backend.

USE CASE 2

Check API responses match the structure your app expects.

USE CASE 3

Ensure user input from external sources is safe and correctly shaped.

Tech stack

TypeScriptNode.js

Getting it running

Difficulty · easy Time to first run · 5min
MIT license allows free use for any purpose, including commercial, as long as you include the original copyright notice.

In plain English

Zod is a TypeScript library for schema validation. "Schema validation" means you define the exact shape and rules that a piece of data must follow, for example, "this field must be a string, that field must be a number greater than zero", and then Zod checks incoming data against those rules at runtime (while your program is actually running). What makes Zod distinctive, based on its description and topics, is that it is TypeScript-first and provides static type inference. This means that when you define a schema, Zod automatically figures out the corresponding TypeScript type for you, so your code editor can catch type errors before the program even runs, without you having to write the type definitions separately. It is useful whenever you receive data from an outside source, such as a form submission or an API response, and need to confirm it matches the structure your application expects. The README was not fully available in the provided data, so a more detailed breakdown of the API is not possible from the provided data alone.

Copy-paste prompts

Prompt 1
Show me how to use Zod to validate a user registration form with email, password, and age fields.
Prompt 2
How do I create a Zod schema for an API response and automatically get TypeScript types from it?
Prompt 3
Write a Zod schema that validates a product object with required name, optional description, and price greater than zero.
Prompt 4
How can I compose multiple Zod schemas together to validate nested data structures?
Open on GitHub → Explain another repo

Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.