Fastify vs NestJS
Updated Jun 28, 2026
Quick Verdict
NestJS has 2.1x more GitHub stars.
GitHub Stars
Fastify 36.7K
vs
NestJS 76.1K
Downloads/wk
Fastify 0
vs
NestJS 0
Contributors
Fastify 901
vs
NestJS 687
Bundle Size
Fastify 132.9 KB
vs
NestJS N/A
Detailed Comparison
Side-by-side metrics from GitHub and npm
Metric
Fastify
NestJS
GitHub Stars
36.7K
76.1K
Weekly Downloads
0
0
Forks
2.8K
8.3K
Open Issues
146
32
Contributors
901
687
Bundle Size (gzip)
132.9 KB
N/A
Dependencies
15
5
Latest Version
5.9.0
11.1.27
Last Commit
Jun 28, 2026
Jun 27, 2026
License
MIT
MIT
First Published
Oct 7, 2016
May 14, 2017
Feature Comparison
Framework capabilities at a glance
Feature
Fastify
NestJS
Typescript
Middleware
Websockets
Validation
Openapi
Edge Runtime
Decorators
Frequently Asked Questions
Common questions about Fastify vs NestJS
Is Fastify better than NestJS?
It depends on your use case. Fastify is fast and low-overhead web framework for node.js, while NestJS is a progressive node.js framework for building efficient server-side applications. Compare the stats and features above to decide which fits your needs.
Is Fastify still maintained in 2026?
Yes, Fastify was last updated on June 28, 2026 and has 901 contributors.
Can I migrate from Fastify to NestJS?
Migration complexity depends on how deeply Fastify is integrated into your project. Both tools serve similar purposes in the Backend Frameworks space, so migration is generally feasible with proper planning.
Related Comparisons
Explore more comparisons