TypeScript Typechecker

Open-source TypeScript projects categorized as Typechecker

Top 3 TypeScript Typechecker Projects

Typechecker
  1. TypeScript

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

    Project mention: Show HN: Zero-codegen TypeScript type inference from Protobuf messages | news.ycombinator.com | 2025-04-14

    This requires the whole `.proto` declaration inline in source a string constant. I'm not holding my breath on "Import non-js content"[1] getting approved, so that means you still have to use another build dependency, or manually keep the .proto files synchronized across multiple sources truth. In that light, it's not clear when this would be a benefit over straight-forward code gen. Cool POC hack though.

    [1]: https://github.com/microsoft/TypeScript/issues/42219

  2. Civic Auth

    Auth in Less Than 5 Minutes. Civic Auth comes with multiple SSO options, optional embedded wallets, and user management — all implemented with just a few lines of code. Start building today.

    Civic Auth logo
  3. ts-runtime

    Runtime Type Checks for TypeScript

  4. is-what

    JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.

    Project mention: Talk about the type never and unknown in TypeScript | dev.to | 2024-09-08

    If you prefer explicit if/else conditional judgments, you can also use ultra-lightweight type checking libraries like mesqueeb/is-what: JS type check (TypeScript supported) functions like isPlainObject() isArray()\ etc. A simple & small integration..

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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TypeScript Typechecker related posts

  • What about a "preferred" keyword in TypeScript?

    1 project | news.ycombinator.com | 11 Apr 2025
  • 8 Reasons Why TypeScript is Becoming the Go-To for Large-Scale JavaScript Projects

    1 project | dev.to | 4 Apr 2025
  • In Defence of TypeScript Enums

    1 project | news.ycombinator.com | 1 Apr 2025
  • Definite clause grammars and symbolic differentiation

    1 project | news.ycombinator.com | 12 Mar 2025
  • TypeScript enums: use cases and alternatives

    5 projects | news.ycombinator.com | 20 Jan 2025
  • TypeScript: Getting Started With TSConfig Options

    1 project | dev.to | 12 Jan 2025
  • 7 Practical Tips to Minimize Your JavaScript Bundle Size

    1 project | dev.to | 29 Dec 2024
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Index

What are some of the best open-source Typechecker projects in TypeScript? This list will help you:

# Project Stars
1 TypeScript 104,036
2 ts-runtime 489
3 is-what 194

Sponsored
Auth in Less Than 5 Minutes
Civic Auth comes with multiple SSO options, optional embedded wallets, and user management — all implemented with just a few lines of code. Start building today.
www.civic.com

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