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Head-to-Head NPM Comparison

koavsfastify

Detailed package comparison for bundle size, weekly downloads, supply chain security, and license obligations.

Weekly Downloads Leader
fastify9.3M/wk
Security Grade Leader
Equal Rating100/100
TypeScript Ready
fastify
Specification
koav3.2.1
fastifyv5.12.7
Weekly Downloads4.2M9.3MWinner
Unpacked Size63.5 KB2.83 MB
Security Grade
A+(100/100)
A+(100/100)
Lifecycle Scripts Clean (No scripts) Clean (No scripts)
TypeScript SupportCommunity @types Built-in Types (.d.ts)
License TypeMITPERMISSIVEMITPERMISSIVE
Direct Dependencies1815
Active Maintainers115
Last ReleaseMay 21, 2026Oct 13, 2026
Install Commandnpm i koanpm i fastify
Full Security ReportView koa AuditView fastify Audit
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Frequently Asked Questions

Which package is more popular, koa or fastify?
fastify is currently more popular with higher weekly downloads (9.3M/week) compared to koa (4.2M/week).
Which has better supply chain security, koa or fastify?
koa has a security score of 100/100 (Grade A+), while fastify holds 100/100 (Grade A+). Both packages have equal security standings.
Do koa and fastify provide TypeScript definitions?
koa may require external @types definitions, while fastify includes native TypeScript definitions.
What licenses do koa and fastify use?
koa is published under the MIT license (PERMISSIVE), and fastify is licensed under MIT (PERMISSIVE).