How to Upload Multiple Files Using Node.js

To upload multiple files using Node.js, you can use the express framework along with the multer middleware. Here's a step-by-step guide:

  1. Install necessary packages:

    Install express and multer using npm:

                        npm install express multer

  2. Create your Node.js application:

    Create a file (e.g., app.js) and set up your basic Express application:

                        const express = require('express');
                        const multer = require('multer');
                        const path = require('path');
                        const app = express();
                        const port = 3000;
                        // Set up Multer for handling file uploads
                        const storage = multer.diskStorage({
                          destination: (req, file, cb) => {
                            cb(null, 'uploads/'); // The directory where uploaded files will be stored
                          filename: (req, file, cb) => {
                            const fileName = `${file.fieldname}-${}${path.extname(file.originalname)}`;
                            cb(null, fileName);
                        const upload = multer({ storage: storage });
                        // Serve static files (optional)
                        // Set up a route to handle file uploads
              '/upload', upload.array('files', 5), (req, res) => {
                          // 'files' is the name attribute in the HTML form for the file input
                          // req.files contains an array of files
                          res.json({ message: 'Files uploaded successfully!', files: req.files });
                        // Start the server
                        app.listen(port, () => {
                          console.log(`Server is running at http://localhost:${port}`);

  3. Create an HTML form for file uploads:

    Create an HTML file (e.g., index.html) with a form for file uploads:

                        <!DOCTYPE html>
                        <html lang="en">
                          <meta charset="UTF-8">
                          <meta name="viewport" content="width=device-width, initial-scale=1.0">
                          <title>File Upload</title>
                          <h1>File Upload</h1>
                          <form action="/upload" method="post" enctype="multipart/form-data">
                            <input type="file" name="files" multiple>
                            <button type="submit">Upload</button>

  4. Run your Node.js application:

                        node app.js

    Visit http://localhost:3000/ in your browser, select multiple files using the file input, and click the "Upload" button. The server will handle the file uploads, and the response will contain information about the uploaded files.

Remember to customize the file storage destination, naming strategy, and other options based on your application's requirements. Additionally, handle errors and edge cases appropriately in a production environment.

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