---
title: "Express.js · Node.js web application framework"
url: https://stacklist.com/card/b20ed447-052b-43ba-b4d1-31835c450a41
source_url: "https://expressjs.com"
stack: https://stacklist.com/c/technology/stack/1614e665-ce71-4182-ad10-cd058d8fc11d
summary: "Express.js is a fast, unopinionated, and minimalist web framework for Node.js that provides robust features for building web and mobile applications. It offers HTTP utility methods, middleware support, and a lightweight routing framework designed to be extended through middleware modules."
tags: "express.js, node.js, web-framework, api-development, middleware, javascript"
key_entities: "Express.js (technology), Node.js (technology), multer (technology), morgan (technology), middleware (concept), REST API (concept)"
classification: "reference"
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acp_version: "0.2"
token_counts_approximate: 317
visibility: public
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status: "final"
---

# Express.js · Node.js web application framework

June 2026 Security Releases Security releases for multer and morgan have been published. We recommend that all users upgrade as soon as possible. Check out our latest blog 5.2.1 Fast, unopinionated, minimalist web framework for Node.js npm install express Get Started const express = require ( 'express' ); const app = express () const port = 3000 app. get ( '/' , ( req , res ) => { res. send ( 'Hello World!' ) }) app. listen (port, () => { console. log ( `Example app listening on port ${ port }` ) }) { res.send('Hello World!')})app.listen(port, () => { console.log(`Example app listening on port ${port}`)})"> Clarity over complexity. For every developer. Web Applications Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. APIs With a myriad of HTTP utility methods and middleware at your disposal, creating a robust API is quick and easy. Performance Express provides a thin layer of fundamental web application features, without obscuring Node.js features that you know and love. Middleware Express is a lightweight and flexible routing framework with minimal core features meant to be augmented through the use of Express middleware modules.