Fastify

Fastify is a highly performant and extensible web framework for Node.js, designed to provide the best developer experience with minimal overhead. It aims to efficiently handle server resources, allowing for a high number of requests per second without sacrificing security or ease of development. Inspired by frameworks like Hapi and Express, Fastify is known for its speed, capable of serving up to 30,000 requests per second depending on code complexity. Key features include a powerful plugin architecture, schema-based validation using JSON Schema for routes and output serialization, and integrated logging with Pino for near-zero cost. It is built to be developer-friendly, offering expressive APIs and full TypeScript support with maintained type declaration files. Fastify is suitable for developers and organizations looking to build high-performance, scalable, and secure Node.js applications, and it powers a large ecosystem with over 10 million monthly downloads.