
Elysia
An ergonomic, high-performance TypeScript framework for building web servers and APIs.
Elysia is a fast and ergonomic TypeScript framework designed for building web servers and APIs. It leverages Bun's performance capabilities while maintaining web-standard compatibility, allowing it to run in various environments. The framework emphasizes a developer-friendly experience with strong type inference and automatic OpenAPI specification generation directly from TypeScript code. It caters to developers looking for a high-performance solution for their backend services, especially those working with TypeScript and seeking an efficient development workflow. Elysia aims to combine speed with excellent developer experience, offering features like file handling, streaming, WebSockets, and robust validation with popular libraries such as Zod, Valibot, and ArkType. The core benefit of Elysia is its ability to deliver exceptional performance, as demonstrated by benchmark results, without sacrificing the benefits of a well-typed and intuitive development environment. Its automatic OpenAPI generation significantly streamlines API documentation, making it easier to maintain and consume APIs.
























