Compare NNAS vs zod and see what are their differences.


Next + NextAuth + Strapi (by peterlidee)


TypeScript-first schema validation with static type inference (by colinhacks)
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NNAS zod
9 292
4 30,778
- -
8.9 9.1
20 days ago 2 days ago
TypeScript TypeScript
- MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of NNAS. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-01.


Posts with mentions or reviews of zod. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-05-04.
  • Simplifying Form Validation with Zod and React Hook Form
    1 project | dev.to | 4 May 2024
    [Zod Documentation](https://zod.dev/) [Zod Error Handling](https://zod.dev/ERROR_HANDLING?id=error-handling-in-zod) [React-Hook-Form Documentation](https://react-hook-form.com/get-started) [Hookform Resolvers](https://www.npmjs.com/package/@hookform/resolvers)
  • Figma's Journey to TypeScript
    5 projects | news.ycombinator.com | 4 May 2024
    This is a very fair comment, and you seem open to understanding why types are useful.

    "problems that are due to typing" is a very difficult thing to unpack because types can mean _so_ many things.

    Static types are absolutely useless (and, really, a net negative) if you're not using them well.

    Types don't help if you don't spend the time modeling with the type system. You can use the type system to your advantage to prevent invalid states from being represented _at all_.

    As an example, consider a music player that keeps track of the current song and the current position in the song.

    If you model this naively you might do something like: https://gist.github.com/shepherdjerred/d0f57c99bfd69cf9eada4...

    In the example above you _are_ using types. It might not be obvious that some of these issues can be solved with stronger types, that is, you might say that "You rarely see problems that are due to typing".

    Here's an example where the type system can give you a lot more safety: https://gist.github.com/shepherdjerred/0976bc9d86f0a19a75757...

    You'll notice that this kind of safety is pretty limited. If you're going to write a music app, you'll probably need API calls, local storage, URL routes, etc.

    TypeScript's typechecking ends at the "boundaries" of the type system, e.g. it cannot automatically typecheck your fetch or localStorage calls return the correct types. If you're casting, you're bypassing the type systems and making it worthless. Runtime type checking libraries like Zod [0] can take care of this for you and are able to typecheck at the boundaries of your app so that the type system can work _extremely_ well.

    [0]: https://zod.dev/ note: I mentioned Zod because I like it. There are _many_ similar libraries.

  • From Flaky to Flawless: Angular API Response Management with Zod
    1 project | dev.to | 25 Apr 2024
    Zod is an open-source schema declaration and validation library that emphasizes TypeScript. It can refer to any data type, from simple to complex. Zod eliminates duplicative type declarations by inferring static TypeScript types and allows easy composition of complex data structures from simpler ones. It has no dependencies, is compatible with Node.js and modern browsers, and has a concise, chainable interface. Zod is lightweight (8kb when zipped), immutable, with methods returning new instances. It encourages parsing over validation and is not limited to TypeScript but works well with JavaScript as well.
  • TypeScript Essentials: Distinguishing Types with Branding
    2 projects | news.ycombinator.com | 24 Apr 2024
  • You can’t run away from runtime errors using TypeScript
    1 project | dev.to | 10 Apr 2024
    Zod is a TypeScript-first schema declaration and validation library. It helps create schemas for any data type and is very developer-friendly. Zod has the functional approach of "parse, don't validate." It supports coercion in all primitive types.
  • Best Next.js Libraries and Tools in 2024
    10 projects | dev.to | 10 Apr 2024
    Link: https://zod.dev/
  • Popular Libraries For Building Type-safe Web Application APIs
    6 projects | dev.to | 7 Apr 2024
    You can check out their documentation here.
  • Epic Next JS 14 Tutorial Part 4: How To Handle Login And Authentication in Next.js
    1 project | dev.to | 4 Apr 2024
    You can learn more about Zod on their website here.
  • What even is a JSON number?
    4 projects | news.ycombinator.com | 1 Apr 2024
    In JS, it's a good idea anyway to use some JSON parsing library instead of JSON.parse.

    With Zod, you can use z.bigint() parser. If you take the "parse any JSON" snippet https://zod.dev/?id=json-type and change z.number() to z.bigint(), it should do what you are looking for.

  • Error handling in our form component for the NextAuth CredentialsProvider
    2 projects | dev.to | 1 Apr 2024
    We will validate our input using client-side zod. Zod handles TypeScript-first schema validation with static type inference. This means that it will not only validate your fields, it will also set types on validated fields.

What are some alternatives?

When comparing NNAS and zod you can also consider the following projects:

class-validator - Decorator-based property validation for classes.

joi - The most powerful data validation library for JS [Moved to: https://github.com/sideway/joi]

typebox - Json Schema Type Builder with Static Type Resolution for TypeScript

Yup - Dead simple Object schema validation

ajv - The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)

io-ts - Runtime type system for IO decoding/encoding

Superstruct - A simple and composable way to validate data in JavaScript (and TypeScript).

class-transformer - Decorator-based transformation, serialization, and deserialization between objects and classes.

runtypes - Runtime validation for static types

react-hook-form - 📋 React Hooks for form state management and validation (Web + React Native)

TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

zod-to-json-schema - Converts Zod schemas to Json schemas