Description

Nest is a TypeScript framework for building backends on Node.js, from a small API in one file to a large system with many teams. It gives an application modules, dependency injection, and one place each for validation, authentication and error handling, so a project keeps its shape as it grows.

It runs on Express, Fastify or Node's own node:http, and its first-party packages cover most of what a backend needs, so you can start small and add them as you go.

Quick start

npx @nestjs/cli new my-api --package-manager npm
cd my-api
npm run start:dev

An application can also be a single file. This can replace src/main.ts, and npx tsx src/main.ts runs it with no build step:

import { Controller, Get, Module } from '@nestjs/common';
import { NestFactory } from '@nestjs/core';

@Controller()
class AppController {
  @Get()
  hello() {
    return 'Hello, Nest!';
  }
}

@Module({ controllers: [AppController] })
class AppModule {}

const app = await NestFactory.create(AppModule);
await app.listen(3000);

First-party packages

| What you need | Package | | --- | --- | | Language models, tools as provider methods, agents, streaming to the browser | @nestjs/ai | | MCP servers | @nestjs/mcp | | Sign-in, sessions, tokens, two-factor, API keys | @nestjs/authentication | | Permissions | @nestjs/authorization | | Email | @nestjs/mail | | Files, S3 included | @nestjs/storage | | Translations | @nestjs/i18n | | Databases | @nestjs/typeorm, @nestjs/drizzle, @nestjs/mongoose, @nestjs/sequelize | | Retries, timeouts, circuit breakers | @nestjs/resilience | | Idempotency keys | @nestjs/idempotency | | Transactional outbox | @nestjs/outbox | | Webhooks, sending and receiving | @nestjs/webhooks | | Running a job on one instance, locks | @nestjs/locks | | Processes that take days | @nestjs/workflows | | Queues and scheduled jobs | @nestjs/bullmq, @nestjs/schedule | | GraphQL, WebSockets, microservices | GraphQL, gateways, microservices | | OpenAPI | @nestjs/swagger | | Configuration, caching, rate limiting, health checks | @nestjs/config, @nestjs/cache-manager, @nestjs/throttler, @nestjs/terminus |

Moving to Nest

• From Express, one route at a time or all at once.
• From Fastify, keeping your plugins.
• As the backend of a Next.js app, moving route handlers across one by one.

Using a coding agent

The whole documentation is available as markdown, with an index at docs.nestjs.com/llms.txt. Projects from nest new come with an AGENTS.md that lists the packages above, since most models were trained before they existed.

Philosophy

Getting started

• To check out the guide, visit docs.nestjs.com. :books:
• 要查看中文 指南, 请访问 docs.nestjs.cn. :books:
• 가이드 문서는 docs.nestjs.com에서 확인하실 수 있습니다. :books:
• ガイドは docs.nestjs.comでご確認ください。 :books:

Questions

For questions and support please use the official Discord channel. The issue list of this repo is exclusively for bug reports and feature requests.

Issues

Please make sure to read the Issue Reporting Checklist before opening an issue. Issues not conforming to the guidelines may be closed immediately.

Observability

NestJS Observe is the official observability platform for Nest applications. Install the @nestjs/observe SDK, pass an API key, and requests, background jobs, errors, logs, and distributed traces start streaming to a dashboard - no manual span wiring and no collector to run. Because the SDK hooks into Nest's own request lifecycle, a trace reads like a call graph of your controllers and providers instead of a bare HTTP route. Free for up to 300,000 events a month, and there is a live demo with no signup.

Consulting

With official support, you can get expert help straight from the Nest core team. We provide dedicated technical support, migration strategies, advice on best practices (and design decisions), PR reviews, and team augmentation. Read more about support here.

Support

Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support from the amazing backers. If you'd like to join them, please read more here.

Principal Sponsors

Gold Sponsors

Silver Sponsors

Sponsors

Backers

Stay in touch

• Author - Kamil Myśliwiec
• Website - https://nestjs.com
• X - @nestframework

License

Nest is MIT licensed.