Frameworks

Express.js Cheat Sheet

Print-ready cheat sheet for Express.js, organized for fast lookup, study, and desk-side use

Source
Express.js Documentation (expressjs.com)
License
MIT
Variants
3 download options
Updated
2026-03-27

Sample

What's in this cheat sheet

Create & Start Server

const express = require("express");
const app = express();
app.listen(3000, () => console.log("Running on :3000"));

Built-in Middleware

app.use(express.json());          // parse JSON bodies
app.use(express.urlencoded({ extended: true })); // form data
app.use(express.static("public")); // serve static files

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