Comparison

Fastify vs Koa

On the evidence we track, Fastify leads this comparison with a composite score of 64/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Fastify64
Koa53
Score
Vioscale score
Fastify64 / 100high · 78%
Koa53 / 100medium · 67%
Pricing
Free tier
Fastify
Koa
Model
Price level
Fastifyfree
Koa
Integrations
Count
Fastify17
Koa
Reliability
Status page
Fastify
Koa
Adoption
Dependent repos
Fastify16,712
Github stars
Fastify37,024
Activity
Commits last 30d
Fastify69
Koa3
Release
Cadence days
Fastify3
Koa16
History
License
Spdx
FastifyMIT
KoaMIT
Language
Primary

Capabilities

Feature-by-feature on the axes that matter for web frameworks. “-” means undocumented, not absent.

Core
Rendering model
Fastify-
Koa-
File-based routing
Fastify-
Koa-
Language
FastifyJavaScript/TypeScript
KoaJavaScript
Rendering
Server components
Fastify-
Koa-
Streaming SSR
Fastify-
Koa-
Fullstack
Built-in API / backend routes
Fastify
Koa
DX
First-class TypeScript
Fastify
Koa-
Fast refresh / HMR
Fastify-
Koa-
Deployment
Edge runtime support
Fastify-
Koa-

What each one is

The product in its own terms, so the numbers below have context.

Fastify

Leader

A Node.js web framework optimized to handle high request volumes with minimal overhead, featuring a plugin system, JSON Schema validation, and native TypeScript support.

Independently observed

Koa

Koa is a lightweight backend framework for Node.js that emphasizes simplicity and developer experience through modern async/await middleware composition, without bundling dependencies.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Fastify

Leader
Open sourceFree tier
as of verify ↗

Koa

Pricing not documented yet.

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Deployment
Self-hosted
Fastify
Koa

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Fastify

Leader
17 total
  • Next.js
  • Apollo Server
  • Angular
  • PostgreSQL
  • MongoDB
  • Redis
  • Elasticsearch
  • Swagger/OpenAPI
  • WebSocket
  • JWT
  • Helmet
  • Sentry
  • RabbitMQ
  • CORS
  • CSRF
  • OAuth2
  • Kubernetes
Independently observed

Koa

Not documented yet.

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.

Fastify vs Koa: an evidence-based comparison · Vioscale