DefinitelyTyped / DefinitelyTyped

The repository for high quality TypeScript type definitions.

sindresorhus / type-fest

A collection of essential TypeScript types

true-myth / true-myth

Safe and idiomatic TypeScript types to handle null, error, and async code handling: Maybe, Result, and Task types that are really nice.

google / schema-dts

JSON-LD TypeScript types for Schema.org vocabulary