Fastify vs hapi: What are the differences?
Developers describe Fastify as "Fast and low overhead web framework, for Node.js". Fastify is a web framework highly focused on speed and low overhead. It is inspired from Hapi and Express and as far as we know, it is one of the fastest web frameworks in town. Use Fastify can increase your throughput up to 100%. On the other hand, hapi is detailed as "Server Framework for Node.js". hapi is a simple to use configuration-centric framework with built-in support for input validation, caching, authentication, and other essential facilities for building web applications and services.
Fastify and hapi belong to "Microframeworks (Backend)" category of the tech stack.
Fastify and hapi are both open source tools. It seems that hapi with 11.3K GitHub stars and 1.16K forks on GitHub has more adoption than Fastify with 11.2K GitHub stars and 690 GitHub forks.
Hazeorid, Beam, and Kanteron Systems are some of the popular companies that use hapi, whereas Fastify is used by OTOBANK, Distopik, and Detroit Technical English. hapi has a broader approval, being mentioned in 58 company stacks & 34 developers stacks; compared to Fastify, which is listed in 5 company stacks and 7 developer stacks.