Stop worrying about servers Deploy your Express.js on serverless.

Enjoy seamless scalability, with lower and predictable costs.
Enhance your Node.js Express app performance with Genezio's serverless infrastructure.

  • checkMarkIcon Up to 4x Faster Cold Start Response Times
    Up to 4x Faster Cold Start Response Times than the competition, enhancing user experience and operational efficiency.
  • checkMarkIcon Up to 6x Lower Costs
    Optimize your budget with our solutions, offering up to 6x cost savings while maintaining top-tier performance and reliability.
  • checkMarkIcon Auto-scaling for 100% Uptime
    Our auto-scaling ensures real-time adaptation to traffic, delivering seamless performance and 100% uptime for your business.

Simplify Your App Deployment

Migrating your Node.js Express app to Genezio is a game-changer. Genezio streamlines the deployment process, making it faster, easier, and more cost-effective. Say goodbye to the complexities of traditional deployment and embrace a more efficient way to manage your apps.


Faster Deployment

    With Genezio, your deployment time is significantly reduced. Our platform is optimized for quick and seamless integration, allowing you to focus on building your app rather than managing servers.


Lower Costs

    Reduce your operational costs with Genezio. Our efficient infrastructure and scalable solutions ensure that you only pay for what you use, saving you money while maintaining top performance.


Easy Migration

    Migrating your existing Express app to Genezio is straightforward. Our comprehensive documentation and support make the process hassle-free so you can get up and running quickly.


Reliable and Scalable

    Genezio provides a robust and auto-scalable environment for your applications. Whether you're handling a few users or thousands, our platform scales effortlessly to meet your needs.



Deploy your Express.js app in 5 minutes with these simple steps

npm install genezio -g 
npm install serverless-http

1 Prerequisites

First, you need to install the serverless-http package. Open your terminal and run the following command


import express from "express";
import Serverless from "serverless-http";

const app = express();

app.get("/", (req, res) => {
  res.send("Hello World from Express serverless!");

app.get("/users", (req, res) => {
    { id: 1, name: "Alice" },
    { id: 2, name: "Bob" },

// You don’t need to listen to the port when using serverless functions in production 
if (process.env.NODE_ENV === "dev") {
  app.listen(8080, () => {
      "Server is running on port 8080. Check the app on http://localhost:8080"

export const handler = Serverless(app);

2 Export the Handler

Next, you need to export the handler function for your Express.js app. In your main application file (e.g. app.mjs).


name: express-app
region: us-east-1
yamlVersion: 2
  # The root directory of the backend.
  path: ./
    name: js
    packageManager: npm
    - name: test-fn
      path: ./
      type: aws
      handler: handler
      entry: app.mjs

3 Create Genezio Config File

Now, create a genezio.yaml file in the root directory of your project. This file will contain the configuration needed to deploy your backend using Genezio.

NODE_ENV=dev node app.mjs

4 Test Your App Locally

Before deploying your app, you can test it locally to ensure it's working correctly.

genezio deploy

5 Deploy your project

Deploy your app to our serverless infrastructure to benefit from our seamless deployment process.


Your questions answered

Genezio is a cutting-edge Function as a Service (FaaS) platform that simplifies application deployment and management. It offers automated scaling, cost efficiency, and enhanced security to streamline the app deployment process.

Migrating your Express app to Genezio provides numerous benefits, including faster deployment times, lower costs, automated scaling, faster cold start times and zero server management overhead. Genezio also offers built-in security and high availability, ensuring your app performs reliably and securely.

Genezio’s pricing model ensures you only pay for the resources you need. This makes Genezio a more cost-effective solution for your deployment needs and you don't have to worry about unpredictable costs at the end of the month. In terms of the size, Genezio is 6x cheaper than the competitors on big scale applications.

Yes, Genezio is designed to scale your application to handle varying levels of traffic automatically. This means your app can accommodate high loads without performance degradation, ensuring a smooth user experience.

Genezio provides 24/7 support (paid plans only) to assist you with any questions or issues you might encounter. Our dedicated support team is always available to make sure your app runs smoothly on our plaform.

Genezio’s FaaS platform offers automated scaling, easier management, cost efficiency, and enhanced security compared to traditional server-based deployments. This allows you to focus on developing your app rather than managing infrastructure.

Genezio is suitable for both small projects and large-scale applications. Its scalable infrastructure allows you to start small and grow seamlessly, ensuring optimal performance and cost efficiency at any scale.

Migrating your Express app to Genezio usually requires minimal changes. Our migration guide provides detailed instructions for making necessary compatibility adjustments.

Yes, you can connect your existing database to your Express app on Genezio.

Genezio automatically scales your application based on traffic demands. This ensures your app remains responsive and performs well during unexpected traffic spikes.

Yes, Genezio supports background jobs and scheduled tasks. You can configure and manage these tasks easily. Learn more

Yes, Genezio integrates seamlessly with popular CI/CD tools and pipelines. This allows you to automate your deployment process and ensure consistent and reliable app updates. Learn more

Still Have Questions?

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