Introduction

Nitro gives you a production-ready server with filesystem routing, code-splitting, and built-in support for storage, caching, and databases — all runtime-agnostic and deployable anywhere.

#What is Nitro?

Create server and API routes inside the routes/ directory. Each file maps directly to a URL path, and Nitro handles the rest — routing, code-splitting, and optimized builds.

You can also take full control of the server entry by creating a server.ts file. Nitro’s high-level, runtime-agnostic approach lets you use any HTTP library, such as Elysia, h3, or Hono.

#Performance

Nitro compiles your routes at build time, removing the need for a runtime router. Only the code required to handle each incoming request is loaded and executed. This makes it ideal for serverless hosting, with near-0ms boot time regardless of project size.

#Deploy Anywhere

Build your server into an optimized .output/ folder compatible with Node.js, Bun, Deno, and many hosting platforms without any configuration — Cloudflare Workers, Netlify, Vercel, and more. Take advantage of platform features like ESR, ISR, and SWR without changing a single line of code.

#Server-Side Rendering

Render HTML with your favorite templating engine, or use component libraries such as React, Vue, or Svelte directly on the server. Go full universal rendering with client-side hydration. Nitro provides the foundation and a progressive approach to reach your goals.

#Storage

Nitro includes a runtime-agnostic key-value storage layer out of the box. It uses in-memory storage by default, but you can connect more than 20 different drivers (FS, Redis, S3, etc.), attach them to different namespaces, and swap them without changing your code.

#Caching

Nitro supports caching for both server routes and server functions, backed directly by the server storage (via the cache namespace).

#Database

Nitro also includes a built-in SQL database. It defaults to SQLite, but you can connect to and query more than 10 databases (Postgres, MySQL, PGLite, etc.) using the same API.

#Meta-Framework Foundation

Nitro can be used as the foundation for building your own meta-framework. Popular frameworks such as Nuxt, SolidStart, and TanStack Start fully or partially leverage Nitro.

#Vite Integration

Nitro integrates seamlessly with Vite as a plugin. If you’re building a frontend application with Vite, adding Nitro gives you API routes, server-side rendering, and a full production server — all built together with vite build.

import { defineConfig } from "vite";
import { nitro } from "nitro/vite";

export default defineConfig({
  plugins: [nitro()],
});

With Nitro, vite build produces an optimized .output/ folder containing both your frontend and backend — ready to deploy anywhere.

Ready to give it a try? Jump into the quick start.