npmpackage.info

Gathering detailed insights and metrics for express

Other packages similar to express

Express

3.0.1

This package was published as a result of a bug, please use the [express](https://www.npmjs.com/package/express) package instead.

@types/express

5.0.1

TypeScript definitions for express

@types/express-serve-static-core

5.0.6

TypeScript definitions for express-serve-static-core

conventional-changelog-express

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Gathering detailed insights and metrics for express

express - 4.21.2 | npmpackage.info

express

Fast, unopinionated, minimalist web framework for node.

4.21.2

66,646

MIT

JavaScript

232.34 kB

4,968,042,490 8.7

Installations

npm install express

Developer Guide

BETA

Typescript

No

Module System

N/A

Min. Node Version

>= 0.10.0

Node Version

20.16.0

NPM Version

10.8.1 Score

94.2

Supply Chain

96.6

Quality

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

78

Total

1,884

Closed

1,379

Merged

427

Issues

Open

96

Total

3,945

Closed

3,849

Releases

159

4.21.2

Updated on Dec 05, 2024

5.0.1

Updated on Oct 08, 2024

4.21.1

Updated on Oct 08, 2024

4.21.0

Updated on Sep 11, 2024

5.0.0

v5.0.0

Updated on Sep 10, 2024

4.20.0

Updated on Sep 10, 2024

View All 159 releases

Languages

JavaScript

Makefile

Shell

JavaScript (99.89%)

Makefile (0.07%)

Shell (0.05%)

Developer

expressjs

Download Statistics

Total Downloads

4,968,042,490

Last Day

1,918,034

Last Week

37,352,944

Last Month

152,142,772

Last Year

1,649,342,409

GitHub Statistics

MIT License

66,646 Stars

6,047 Commits

18,026 Forks

1,693 Watchers

15 Branches

333 Contributors

Updated on Mar 31, 2025

Bundle Size

580.92 kB

Minified

232.34 kB

Minified + Gzipped

Bundlephobia

Sponsor this package

https://opencollective.com/express

Maintainers

View All 333 Contributors

Package Meta Information

Latest Version

4.21.2

Package Id

express@4.21.2

Unpacked Size

216.04 kB

Size

56.66 kB

File Count

NPM Version

10.8.1

Node Version

20.16.0

Published on

Dec 05, 2024

Total Downloads

Cumulative downloads

Total Downloads

4,968,042,490

Last Day

-0.4%

1,918,034

Compared to previous day

Last Week

0.6%

37,352,944

Compared to previous week

Last Month

-4.4%

152,142,772

Compared to previous month

Last Year

13.9%

1,649,342,409

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

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

This project has a Code of Conduct.

Installation
Features
Docs & Community
Quick Start
Running Tests
Philosophy
Examples
Contributing to Express
TC (Technical Committee)
Triagers
License

1const express = require('express')
2const app = express()
3
4app.get('/', function (req, res) {
5  res.send('Hello World')
6})
7
8app.listen(3000)

Installation

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

Before installing, download and install Node.js. Node.js 0.10 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:

1$ 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

Website and Documentation - [website repo]
#express on Libera Chat IRC
GitHub Organization for Official Middleware & Modules
Visit the Wiki
Google Group for discussion
Gitter for support and discussion

PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.

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:

1$ npm install -g express-generator@4

Create the app:

1$ express /tmp/foo && cd /tmp/foo

Install dependencies:

1$ npm install

Start the server:

1$ 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 Consolidate.js, you can quickly craft your perfect framework.

Examples

To view the examples, clone the Express repo and install the dependencies:

1$ git clone https://github.com/expressjs/express.git --depth 1
2$ cd express
3$ npm install

Then run whichever example you want:

1$ 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, then run npm test:

1$ npm install
2$ npm test

People

The original author of Express is TJ Holowaychuk

List of all contributors

TC (Technical Committee)

UlisesGascon - Ulises Gascón (he/him)
jonchurch - Jon Church
wesleytodd - Wes Todd
LinusU - Linus Unnebäck
blakeembrey - Blake Embrey
sheplu - Jean Burellier
crandmck - Rand McKinney
ctcpip - Chris de Almeida

TC emeriti members

dougwilson - Douglas Wilson
hacksparrow - Hage Yaapa
jonathanong - jongleberry
niftylettuce - niftylettuce
troygoode - Troy Goode

Triagers

aravindvnair99 - Aravind Nair
carpasse - Carlos Serrano
CBID2 - Christine Belzie
enyoghasim - David Enyoghasim
UlisesGascon - Ulises Gascón (he/him)
mertcanaltin - Mert Can Altin
0ss - Salah
import-brain - Eric Cheng (he/him)
3imed-jaberi - Imed Jaberi
dakshkhetan - Daksh Khetan (he/him)
lucasraziel - Lucas Soares Do Rego
IamLizu - S M Mahmudul Hasan (he/him)
Sushmeet - Sushmeet Sunger

Triagers emeriti members

Emeritus Triagers

AuggieH - Auggie Hudak
G-Rath - Gareth Jones
MohammadXroid - Mohammad Ayashi
NawafSwe - Nawaf Alsharqi
NotMoni - Moni
VigneshMurugan - Vignesh Murugan
davidmashe - David Ashe
digitaIfabric - David
e-l-i-s-e - Elise Bonner
fed135 - Frederic Charette
firmanJS - Firman Abdul Hakim
getspooky - Yasser Ameur
ghinks - Glenn
ghousemohamed - Ghouse Mohamed
gireeshpunathil - Gireesh Punathil
jake32321 - Jake Reed
jonchurch - Jon Church
lekanikotun - Troy Goode
marsonya - Lekan Ikotun
mastermatt - Matt R. Wilson
maxakuru - Max Edell
mlrawlings - Michael Rawlings
rodion-arr - Rodion Abdurakhimov
sheplu - Jean Burellier
tarunyadav1 - Tarun yadav
tunniclm - Mike Tunnicliffe

License

MIT

Moderate

4/10

Summary

Express ressource injection

Affected Versions

<= 3.21.4

Patched Versions

4.0.0-rc1

Moderate

6.1/10

Summary

Express.js Open Redirect in malformed URLs

Affected Versions

>= 5.0.0-alpha.1, < 5.0.0-beta.3

Patched Versions

5.0.0-beta.3

Moderate

6.1/10

Summary

Express.js Open Redirect in malformed URLs

Affected Versions

< 4.19.2

Patched Versions

4.19.2

Moderate

6.1/10

Summary

No Charset in Content-Type Header in express

Affected Versions

>= 4.0.0, < 4.5.0

Patched Versions

4.5.0

Moderate

6.1/10

Summary

No Charset in Content-Type Header in express

Affected Versions

< 3.11.0

Patched Versions

3.11.0

Low

4.7/10

Summary

Express Open Redirect vulnerability

Affected Versions

>= 3.4.5, < 4.0.0-rc1

Patched Versions

4.0.0-rc1

Low

5/10

Summary

express vulnerable to XSS via response.redirect()

Affected Versions

>= 5.0.0-alpha.1, < 5.0.0

Patched Versions

5.0.0

Low

5/10

Summary

express vulnerable to XSS via response.redirect()

Affected Versions

< 4.20.0

Patched Versions

4.20.0

10

Maintained

Determines if the project is "actively maintained".

10

Dangerous-Workflow

Determines if the project's GitHub Action workflows avoid dangerous patterns.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

10

Security-Policy

Determines if the project has published a security policy.

10

Dependency-Update-Tool

Determines if the project uses a dependency update tool.

10

License

Determines if the project has defined a license.

10

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

10

Contributors

Determines if the project has a set of contributors from multiple organizations (e.g., companies).

9

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

9

SAST

Determines if the project uses static code analysis.

9

CI-Tests

Determines if the project runs tests before pull requests are merged.

6

Pinned-Dependencies

Determines if the project has declared and pinned the dependencies of its build process.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Fuzzing

Determines if the project uses fuzzing.

Score

8.7

/10

Last Scanned on 2025-03-28T00:46:24Z

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

Other packages similar to express

Other packages similar to express

express

Installations

Developer Guide

No

N/A

>= 0.10.0

20.16.0

10.8.1

Score

Pull Requests

78

1,884

1,379

427

Issues

96

3,945

3,849

Releases

Languages

Developer

Download Statistics

GitHub Statistics

Bundle Size

580.92 kB

232.34 kB

Sponsor this package

Maintainers

Package Meta Information

Total Downloads

4,968,042,490

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

Dev Dependencies

Table of contents

Installation

Features

Docs & Community

Quick Start

Philosophy

Examples

Contributing

Security Issues

Running Tests

People

TC (Technical Committee)

TC emeriti members

Triagers

Emeritus Triagers

License

10

10

10

10

10

10

10

10

10

9

9

9

6

0

0

8.7

/10