Comparison

Fastify vs NestJS

No clear leader: Fastify (63.9) and NestJS (63.8) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Fastify64
NestJS64
Score
Vioscale score
Fastify64 / 100high · 78%
NestJS64 / 100high · 78%
Pricing
Free tier
Fastify
NestJS
Model
Price level
Fastifyfree
NestJSlow
Transparent
Fastify
NestJS
Integrations
Count
Fastify17
NestJS9
Adoption
Dependent repos
Fastify16,712
NestJS78,848
Github stars
Fastify37,024
NestJS76,466
Activity
Commits last 30d
Fastify69
NestJS100
Release
Cadence days
Fastify3
NestJS6
History
Fastify20 items
NestJS20 items
License
Spdx
FastifyMIT
NestJSMIT
Language
Primary
Market
Availability
Fastify

Capabilities

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

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

What each one is

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

Fastify

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

NestJS

A unified platform integrating planning, source control, and CI/CD pipelines with built-in security scanning and compliance controls to help teams accelerate software delivery and maintain security across the entire lifecycle.

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

Open sourceFree tier
as of verify ↗

NestJS

HybridFree tier
as of verify ↗

Platform & deployment

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

Platforms
Web
Fastify
NestJS
CLI
Fastify
NestJS
Deployment
Cloud / SaaS
Fastify
NestJS
Self-hosted
Fastify
NestJS
On-premise
Fastify
NestJS
Air-gapped
Fastify
NestJS

Integrations

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

In common (1)
  • Swagger/OpenAPI

Fastify

17 total - 16 not shared
  • Next.js
  • Apollo Server
  • Angular
  • PostgreSQL
  • MongoDB
  • Redis
  • Elasticsearch
  • WebSocket
  • JWT
  • Helmet
  • Sentry
  • RabbitMQ
  • CORS
  • CSRF
  • OAuth2
  • Kubernetes
Independently observed

NestJS

9 total - 8 not shared
  • Express
  • Fastify
  • GraphQL
  • TypeORM
  • Bull
  • WebSockets
  • Microservices
  • Angular Universal
Independently observed

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