Deploy Flask App on Render

This guide walks you through deploying your Flask web application on Render — a popular cloud platform for web hosting. Whether you're building a portfolio or a production-ready app, Render makes deployment simple and efficient.

Why Use Render?

Render provides an easy, automated deployment pipeline for web applications. With Render, you can:

• Automatically deploy from GitHub
• Get free SSL and HTTPS
• Scale with zero-downtime deployments

Step 1: Prepare Your Flask App

Ensure your Flask app has these files:

• requirements.txt - List of Python packages
• Procfile - Tells Render how to run your app
• render.yaml (optional) - For advanced configuration

# requirements.txt
Flask

# Procfile
web: gunicorn app:app
    

Step 2: Push to GitHub

Upload your Flask project to GitHub. Render integrates directly with Git repositories for continuous deployment.

Step 3: Create a Render Web Service

Go to render.com and follow these steps:

1. Click New Web Service
2. Connect your GitHub repo
3. Select branch and root directory
4. Set Build Command: pip install -r requirements.txt
5. Set Start Command: gunicorn app:app

Step 4: Add Environment Variables

If your app uses environment variables (like API keys or database URLs), add them under the Environment tab in your Render dashboard.

Step 5: Deploy and Test

Once you deploy, Render will build and start your app automatically. If the build fails, check logs for errors. Successful deployment gives you a live HTTPS link to share!

Tips for Production

• Use gunicorn instead of Flask's built-in server
• Enable automatic redeploy on git push
• Monitor uptime and error logs from the Render dashboard

Conclusion

Render is a great choice for developers looking to deploy Flask apps quickly and reliably. With simple setup, continuous deployment, and strong production support, it helps bring your Python apps to the world.