Awesome GitHub RepositoriesTypeScript Type-to-Code Validators

fp-ts is a TypeScript library that brings pure functional programming patterns to the language through algebraic data types, type class abstractions, and composable combinators. It provides foundational data types like Option for optional values, Either for typed error handling, and Task for lazy asynchronous computations, all designed to make invalid states unrepresentable and side effects explicit. The library is built on category theory concepts, offering type classes such as Functor, Applicative, Monad, Semigroup, and Monoid with lawful instances for common data structures. The library di

Typia is a compile-time code generator that transforms TypeScript type annotations into runtime validation, serialization, and schema functions without requiring decorators or separate schema files. It generates optimized validation and serialization code during TypeScript compilation, producing dedicated functions for each type that eliminate runtime schema objects for faster execution. The project extends this core capability into several integrated areas. It generates fully typed client SDKs from NestJS controller source code, keeping server and client types synchronized automatically. It

Locutus is a multi-language utility library and polyfill collection written in TypeScript. It provides a comprehensive set of implementations for standard library functions from various programming languages, enabling developers to use familiar semantics and behaviors across different technical environments. The library functions as a cross-language standard library, porting core logic and utilities from diverse languages into a type-safe TypeScript toolset. It focuses on maintaining consistent behavior through a polyfill-based design that replicates the original functionality of these foreig