Fastify

Fastify is a performance-oriented backend web framework for Node.js, released as free and open-source software under an MIT License. Its development was inspired by Hapi and Express.^[3]

Fastify

Original author(s)	Matteo Collina Tomas Della Vedova
Developer(s)	Platformatic, OpenJS and others
Initial release	September 2016; 8 years ago (2016-09)[1]
Stable release	5.3.3 / May 13, 2025; 29 days ago[2]
Repository	github.com/fastify/fastify
Written in	JavaScript
Platform	Node.js
Type	Web framework
License	MIT License
Website	fastify.dev

As a lightweight alternative to other Node.js web API frameworks,^[4][5] benchmarks reveal it to be significantly faster.^[6]

History

Fastify was conceived by Matteo Collina while working at NearForm in 2015. Collina and Tomas Della Vedova created Fastify in September 2016.^[1] According to GitHub, the initial release of Fastify was version 0.1.0 on October 17, 2016.^[7]

Building upon the technical foundations of Fastify, Collina and Luca Maraschi created Platformatic in 2022, to support a "batteries-included" developer experience for building APIs (REST/OpenAPI or GraphQL).^[8][9]

Features

Core features include:

• Concentration on high-performance
• Extensibility
• JSON Schema validated routing
• Logging
• Developer friendly
• TypeScript ready

Popularity

Fastify is used by Capital One, Walmart, American Express^[1] and others.^[10]

See also

• Free and open-source software portal

• Comparison of server-side web frameworks § JavaScript
• Socket.IO