Deploy a Node.js App on Render — Free, Fast, and Simple (2026)

Deploy a Node.js App on Render — Fast & Free

By YourName · Updated: 2026-03-01

Contents

• Prepare project
• Method A — Git deploy (recommended)
• Method B — Docker
• Test & secrets

Prep your Node app

Make sure your app listens on process.env.PORT and has a start script in package.json.

// example: src/index.js
const express = require('express');
const app = express();
app.get('/', (req,res) => res.send('Hello from Render!'));
const PORT = process.env.PORT || 3000;
app.listen(PORT, ()=> console.log('Listening on', PORT));

Method A — Connect Git repo to Render

1. Push your repo to GitHub.
2. Create a new Web Service on Render → connect your GitHub repo.
3. Choose branch, set Build Command (e.g. npm ci && npm run build) and Start Command (e.g. npm start).
4. Render auto-builds and gives you a URL (https://your-app.onrender.com).

Tip: Add a render.yaml if you want reproducible infra-as-code.

Method B — Docker (if your app needs it)

# Dockerfile
FROM node:20-alpine
WORKDIR /app
COPY package*.json ./
RUN npm ci --production
COPY . .
EXPOSE 3000
CMD ["node","src/index.js"]

Push image to Docker Hub / registry, then create a Web Service in Render using the image URL.

Testing & environment variables

• Use Render dashboard → Environment → Add secret keys (DB_URL, API_KEY).
• Open the public URL and confirm startup logs in Render dashboard.
• Use curl or Postman to test endpoints.

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