Deploy and Host Selenium + Flask on Railway

What is Selenium + Flask?

Selenium + Flask is a lightweight setup that pairs a simple Python web framework with browser automation. It allows you to trigger headless Chromium scraping directly through HTTP endpoints, making it practical for small automation tasks, data gathering, or scripted interactions with web pages.

About Hosting Selenium + Flask

Hosting Selenium + Flask on Railway means your scraping logic runs in a containerized environment with headless Chromium available out of the box. You expose your scraping actions as HTTP routes, and Railway handles build, deploy, and scaling. This setup avoids messy local ChromeDriver installs and makes it easy to create small automation workers or integrate them into larger systems.

How to Use

After deploying this template, the app is already running on Railway. You can open the generated Railway domain to test the starter app immediately.

If you want to customize the source code, use one of the workflows below.

Via Railway CLI

Use this workflow if you want to edit the project locally and redeploy changes directly from your machine using Railway CLI.

1. Deploy the template.
2. Clone the repository from Source Repo or Upstream Repo in the Railway dashboard.
3. Enter the project directory:

cd 

4. Link your local project directory to the deployed Railway project:

railway link

5. Check the linked project, environment, service, and repository information:

railway status

6. Edit the code locally.
7. Redeploy your local changes to Railway:

railway up

Railway will upload the current local directory and deploy it to the linked service.

Via Git / GitHub

Use this workflow if you want to manage changes through GitHub and let Railway automatically redeploy after every push.

1. Deploy the template.
2. Open Source Repo or Upstream Repo from the Railway dashboard.
3. Fork the repository to your own GitHub account.
4. Clone your fork locally:

git clone 
cd 

5. Edit the code locally.
6. Commit and push your changes to your fork:

git add .
git commit -m "Customize Node.js starter"
git push origin main

7. In Railway, change the service Source Repo to your fork if Railway does not automatically create or link it.
8. After the service is connected to your fork, future pushes to the repository can trigger automatic redeployments.

Common Use Cases

• Trigger automated browser tasks via API
• Scrape dynamic websites that require JavaScript
• Build small automation workers for internal tools

Dependencies for Selenium + Flask Hosting

• Flask
• Selenium WebDriver and Chromium/ChromeDriver

Deployment Dependencies

• Headless Chromium package (Alpine or Debian-based)
• ChromeDriver matching the installed Chromium version

Implementation Details

You can expose any browser-based task as an HTTP endpoint. Keep drivers short-lived to avoid memory buildup, and prefer stateless scraping per request.

Why Deploy Selenium + Flask on Railway?

Railway is a singular platform to deploy your infrastructure stack. Railway will host your infrastructure so you don't have to deal with configuration, while allowing you to vertically and horizontally scale it.

By deploying Selenium + Flask on Railway, you are one step closer to supporting a complete full-stack application with minimal burden. Host your servers, databases, AI agents, and more on Railway.