Fastify vs Spring Boot
Updated Oct 18, 2026
Quick Verdict
Spring Boot has 2.2x more GitHub stars.
GitHub Stars
Fastify 37.3K
vs
Spring Boot 81.7K
Downloads/wk
Fastify 0
vs
Spring Boot N/A
Contributors
Fastify 939
vs
Spring Boot 1.6K
Bundle Size
Fastify 147.0 KB
vs
Spring Boot N/A
Detailed Comparison
Side-by-side metrics from GitHub and npm
Metric
Fastify
Spring Boot
GitHub Stars
37.3K
81.7K
Weekly Downloads
0
N/A
Forks
3.1K
45.2K
Open Issues
175
538
Contributors
939
1.6K
Bundle Size (gzip)
147.0 KB
N/A
Dependencies
15
N/A
Latest Version
5.12.7
N/A
Last Commit
Oct 17, 2026
Oct 17, 2026
License
MIT
Apache-2.0
First Published
Oct 7, 2016
Oct 19, 2012
Feature Comparison
Framework capabilities at a glance
Feature
Fastify
Spring Boot
Typescript
Middleware
Websockets
Validation
Openapi
Edge Runtime
Decorators
Frequently Asked Questions
Common questions about Fastify vs Spring Boot
Is Fastify better than Spring Boot?
It depends on your use case. Fastify is fast and low-overhead web framework for node.js, while Spring Boot is java-based framework for creating stand-alone, production-grade 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 October 17, 2026 and has 939 contributors.
Can I migrate from Fastify to Spring Boot?
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.
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