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    expressjs

    expressjs/express

    Fast, unopinionated, minimalist web framework for node.

    backend
    express
    javascript
    nodejs
    server
    JavaScript
    MIT
    68.7K stars
    22.5K forks
    68.7K watching
    Updated 2/27/2026
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    Health Score

    75

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    Contributors

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    Total contributors

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    About express

    Express Logo

    Fast, unopinionated, minimalist web framework for Node.js.

    This project has a Code of Conduct.

    Table of contents

    NPM Version NPM Downloads Linux Build Test Coverage OpenSSF Scorecard Badge

    import express from 'express'

const app = express()

app.get('/', (req, res) => {
  res.send('Hello World')
})

app.listen(3000, () => {
  console.log('Server is running on http://localhost:3000')
})

    Installation

    This is a Node.js module available through the npm registry.

    Before installing, download and install Node.js. Node.js 18 or higher is required.

    If this is a brand new project, make sure to create a package.json first with the npm init command.

    Installation is done using the npm install command:

    npm install express

    Follow our installing guide for more information.

    Features

    • Robust routing
    • Focus on high performance
    • Super-high test coverage
    • HTTP helpers (redirection, caching, etc)
    • View system supporting 14+ template engines
    • Content negotiation
    • Executable for generating applications quickly

    Docs & Community

    PROTIP Be sure to read the migration guide to v5

    Quick Start

    The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:

    Install the executable. The executable's major version will match Express's:

    npm install -g express-generator@4

    Create the app:

    express /tmp/foo && cd /tmp/foo

    Install dependencies:

    npm install

    Start the server:

    npm start

    View the website at: http://localhost:3000

    Philosophy

    The Express philosophy is to provide small, robust tooling for HTTP servers, making it a great solution for single page applications, websites, hybrids, or public HTTP APIs.

    Express does not force you to use any specific ORM or template engine. With support for over 14 template engines via @ladjs/consolidate, you can quickly craft your perfect framework.

    Examples

    To view the examples, clone the Express repository:

    git clone https://github.com/expressjs/express.git --depth 1 && cd express

    Then install the dependencies:

    npm install

    Then run whichever example you want:

    node examples/content-negotiation

    Contributing

    The Express.js project welcomes all constructive contributions. Contributions take many forms, from code for bug fixes and enhancements, to additions and fixes to documentation, additional tests, triaging incoming pull requests and issues, and more!

    See the Contributing Guide for more technical details on contributing.

    Security Issues

    If you discover a security vulnerability in Express, please see Security Policies and Procedures.

    Running Tests

    To run the test suite, first install the dependencies:

    npm install

    Then run npm test:

    npm test

    Current project team members

    For information about the governance of the express.js project, see GOVERNANCE.md.

    The original author of Express is TJ Holowaychuk

    List of all contributors

    TC (Technical Committee)

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    License

    MIT

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