runtypes VS typescript-is

Compare runtypes vs typescript-is and see what are their differences.

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runtypes typescript-is
22 9
2,538 949
1.4% -
5.6 4.2
about 2 months ago 9 months ago
TypeScript TypeScript
MIT License 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.

runtypes

Posts with mentions or reviews of runtypes. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-03-14.

typescript-is

Posts with mentions or reviews of typescript-is. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-07-23.
  • Good bye "typescript-is" (ancestor of "typia", 20,000x faster validator)
    2 projects | /r/node | 23 Jul 2023
    3 projects | dev.to | 21 Jul 2023
  • Typing for JSON Payloads
    7 projects | /r/typescript | 17 Jan 2022
    I'll throw https://github.com/woutervh-/typescript-is in the mix as well.
  • Handling json input in an express app
    4 projects | /r/typescript | 12 Oct 2021
    I'm a fan of typescript-is. Provides both compile time and run time validations
  • What can I *use* Rust for?
    2 projects | /r/rust | 3 Oct 2021
    For what it's worth, thanks to TypeScript transformers (a feature baked into the compiler), one can create a transformer library that verifies an object is valid for any TypeScript type and conveys that information to the typechecker. And indeed, it's already been made. It allows to parse unknown into a given T. This is nice, because one can generate a JSON schema out of a TS type, for other languages/codebases to integrate safely.
  • TypeScript runtime type-checking - designed for simple use, through to enforcing API payload schema
    5 projects | /r/typescript | 7 Sep 2021
    Then there's also typescript-is, which is pretty neat because it converts actual compile-time type definitions to runtime type checks, so it doesn't require changing the type definitions.
  • JSON Schema === Runtime Type System for TypeScript
    8 projects | /r/typescript | 6 Jul 2021
    typescript-is. This uses a compile-time transformer to generate code for type-checking. You'll need to use ttypescript instead of typescript to compile your code (I recommend setting this up with ts-patch). It won't work if your build pipeline is actually using something like esbuild or Babel to transpile TS->JS.
  • How an Anti-TypeScript “JavaScript developer” like me became a TypeScript fan
    11 projects | news.ycombinator.com | 2 Mar 2021
    If you're not using a bunch of generics, check out typescript-is [1]. It takes little work to get it setup, but it generates run time type checks for you. I understand why typescript decided to not add this functionality to the core of the language, but it's starting to feel like the largest missing piece of typescript is a built-in way to generate run-time type-checks for user-defined types from just the type definition.

    The happy medium we've found with that module is using the runtime type-check on anything "unsafe" to bless the result using typescript-is's equals functionality, but still allowing programmers to use casting with a comment justifying its necessity. For us our list of unsafe is results pulled from the db, anything parsed from JSON, and incoming request bodies (which can be a special case of parsing from JSON, but not always).

    [1]: https://github.com/woutervh-/typescript-is

What are some alternatives?

When comparing runtypes and typescript-is you can also consider the following projects:

zod - TypeScript-first schema validation with static type inference

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

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

type-fest - A collection of essential TypeScript types

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

ts-auto-guard - Generate type guard functions from TypeScript interfaces

typegraphql-prisma - Prisma generator to emit TypeGraphQL types and CRUD resolvers from your Prisma schema

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

nest-clean-architecture - 🏛️ Nest.js clean architecture example following some DDD principles with use-cases written in functionnal programming.

ts-node - TypeScript execution and REPL for node.js

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

typescript-json-validator - Automatically generate a validator using JSON Schema and AJV for any TypeScript type.