Next js host 0.0 0.0

Accessing Localhost (Vite, Next.js, React, Express) from Another Device on the Same Network

When developing web applications, you might need to test them on a real mobile device or another computer connected to the same network. By default, local development servers (e.g., Vite, Next.js, React, Express) bind to , making them accessible only on your own machine. This guide will help you access your local server from another device.

🌍 What is Localhost & How It Works?

Localhost () is a special address used by your computer to refer to itself. When you run a local development server, it typically binds to , meaning it's only accessible from the same computer.

However, when you need to test your application on another device, you must expose your server to the local network. This is done by binding the server to (which means "listen on all available network interfaces") and accessing it via your local IP address.

🌍 Finding Your Local IP Address

To access your development server from another device, you need your local IP address. Follow these steps:

🖥 Windows:

1. Open Co
   
   
   

   How to use debugging tools with Next.js

   This documentation explains how you can debug your Next.js frontend and backend code with complete source maps support using the VS Code debugger, Chrome DevTools, or Firefox DevTools.

   Any debugger that can attach to Node.js can also be used to debug a Next.js application. You can find more details in the Node.js Debugging Guide.

   Debugging with VS Code

   Create a file named at the root of your undertaking with the following content:

   Note: To use Firefox debugging in VS Code, you'll need to install the Firefox Debugger extension.

   can be replaced with if you're using Yarn or if you're using pnpm.

   In the "Next.js: debug full stack" configuration, specifies which browser to open when the server is ready. means to launch the Edge browser. If you are using Chrome, modify this value to .

   If you're changing the port number your application starts on, replace the in with the port you're using instead.

   If you're running Next.js from a directory other than root (for example, if you're using Turborepo) then you depend on to add to the server-side and full stack debugging tasks. For example, .

   Now go to the
   

   NextJS Node Env Deployment Times Out

   alexnakagawa1

   It appears, that I have the same issue with deployments timing out as many other posts, but with NextJS. I receive this log when I try to deploy:
   

   But the deployment times out after 15 minutes of waiting. I have changed the port to 0.0.0.0 as others have suggested, but no dice. Any thoughts?

   danielle2

   Hello! We ddi have an incident this morning, but things should be resolved now and we’re investigating to ensure it doesn’t happen again. You can look at our status page for more updates.

   However, I’m not sure that your deployment should have been affected by this- are you able to deploy now?

   alexnakagawa3

   Thank you so much for your quick reply! I’ll subscribe to the status page for the future.

   I just tried another deployment and it appears that the problem still persists.

   danielle4

   I’m not entirely sure why it’s doing this, but I think it’s having trouble deploying because it’s trying to deploy to instead of just . Is there anything in your app that would be causing it to deploy to localhost specifically?

   alexnakagawa5

   Not particularly. The help message for the shows the following:
   

   which would
   

   Turbopack

   Turbopack is an incremental bundlerNext.js. You can use Turbopack with both the Pages and App Router for a much faster local development experience.

   Why Turbopack?

   We built Turbopack to push the performance of Next.js, including:

   • Unified Graph: Next.js supports multiple output environments (e.g., client and server). Managing multiple compilers and stitching bundles together can be tedious. Turbopack uses a single, unified graph for all environments.
   • Bundling vs Native ESM: Some tools skip bundling in development and rely on the browser's native ESM. This works well for small apps but can slow down large apps due to excessive network requests. Turbopack bundles in dev, but in an optimized way to keep large apps fast.
   • Incremental Computation: Turbopack parallelizes work across cores and caches results down to the function level. Once a piece of work is done, Turbopack won’t repeat it.
   • Lazy Bundling: Turbopack only bundles what is actually requested by the dev server. This lazy approach can reduce initial compile times and memory usage.

   Getting started

   To enable Turbopack in your Next.js project, add the flag to the and scripts in your

   ​

   What We’re Deploying

   If you signed up for Porter Cloud using an email address instead of a Github account, you can easily connect your Github account to Porter by clicking on the profile icon on the top right corner of the dashboard, selecting ‘Account settings’, and adding your Github account.

   Configuration of Build Settings

   Porter has the ability to automatically detect what language your app is written in and select an appropriate buildpack that can be used to package your Next.js app for eventual deployment automatically. Once you’ve selected the branch you wish to use, Porter will display the following screen:You can further tune your build here. For instance, we’re going to use the newer ‘heroku/builder:22’ buildpack for our new Next.js app.

   Configuration of services

   At this point, taking a quick look at applications and services is a good idea. An application on Porter is a group of services where each service shares the same build and the same environment variables. If your app consists of a single repository with separate modules for, say, an API, a frontend, and a background worker, then you’d deploy a single application on Porter with three separate se