nestjs/nest

NestJS — a progressive Node.js framework for building enterprise-grade server-side apps. Angular-flavored architecture (decorators, DI, modules) on top of Express/Fastify.

What it is

A TypeScript framework for backend services that brings Angular-style architecture (decorators, dependency injection, modules) to Node.js. Built on top of Express (or Fastify as alternative adapter). Provides primitives for REST, GraphQL, WebSocket, microservices, gRPC, and queue-driven jobs. Heavy adoption in enterprise / Angular-team-flavored backends.

Key features

• Decorators-driven controllers + services.
• First-class DI with module-based composition.
• Express + Fastify HTTP adapters.
• REST + GraphQL + WebSocket + microservices + gRPC + queue support.
• CLI scaffolding (nest g controller foo).
• TypeScript-first; types are not optional.
• MIT-licensed.

Tech stack

• TypeScript primary.
• Express (default) or Fastify HTTP adapter.
• npm package: @nestjs/*.

When to reach for it

• You're an Angular team building Node.js backends and want familiar architecture.
• You want a batteries-included Node framework rather than assembling Express + middleware.
• You're shipping enterprise services where DI + module structure pays off.

When not to reach for it

• You want minimal — Express, Fastify, or Hono are lighter starting points.
• You're allergic to decorators / heavy framework abstractions.

Maturity signal

76k stars, 8k forks, MIT, actively maintained under NestJS Inc. Open-issues count of 27 is exceptionally low — tight team triage. 8+ years.

Alternatives

• Express, Fastify, Hono — lighter Node frameworks.
• AdonisJS — Laravel-flavored Node framework.

Tags

typescript, nodejs, framework, backend, nestjs, mit-license, dependency-injection, microservices