Test Localhost in Real Browsers
Test your local development server in real cloud browsers — without deploying. SSH tunnel your localhost to Chrome, Firefox, Edge, and more.
Start Testing FreeWhy Local Testing Matters
Cross-browser bugs caught in production are expensive — they cost developer time, damage user trust, and can block releases. Local testing lets you catch these issues before code ever leaves your machine. Instead of deploying to a staging server just to test in Firefox or Edge, you tunnel your localhost directly to a real cloud browser and see exactly what users will see.
MyBrowser's local testing feature uses SSH tunnels to securely connect your local development server to our cloud infrastructure. The remote browser loads your site through the tunnel, giving you a fully interactive session with your locally-running code — in any browser, any operating system.
How It Works
1. Start Your Server
Run your development server as usual on localhost (e.g., localhost:3000).
2. Open SSH Tunnel
Create an SSH tunnel to route traffic from our cloud to your local machine. One command in your terminal.
3. Test in Any Browser
Your localhost is now accessible in the cloud browser. Click, scroll, debug — in Chrome, Firefox, Edge, Brave, or Tor.
Local Testing vs. Traditional Approaches
| Approach | Setup Time | Real Browsers | No Deploy Needed |
|---|---|---|---|
| MyBrowser Local Testing | ~30 seconds | Yes (5 browsers) | Yes |
| Local VMs (VirtualBox) | 30+ minutes | Yes | Yes |
| Deploy to staging | 2-10 minutes | Yes | No |
| DevTools emulation | Instant | No (same engine) | Yes |
Use Cases
Pre-commit cross-browser checks
Verify your CSS changes render correctly in Firefox and Edge before pushing code.
Testing responsive layouts on real devices
See exactly how your localhost looks on different screen sizes in a real browser, not a simulated viewport.
Debugging browser-specific JavaScript
Reproduce and debug issues that only appear in specific browsers — without installing them locally.
Testing auth flows and API integrations
Test OAuth callbacks, webhook handlers, and API integrations running on your local backend.
Frequently Asked Questions
MyBrowser supports SSH tunnel-based local testing on paid plans. You create an SSH tunnel from your machine to our servers, which routes traffic from the remote browser back to your local development server. This lets you test localhost URLs in a real cloud-hosted browser without deploying your code.
No. With SSH tunnel local testing, you can test sites running on localhost, 127.0.0.1, or any local network address. Your code stays on your machine — only the browser rendering happens on our servers.
Yes. The SSH tunnel is encrypted end-to-end. Your local server is only accessible through the authenticated tunnel during your active session. When the session ends, the tunnel is destroyed along with the browser container. No data persists on our servers.
SSH tunnel local testing is available on the Developer plan ($10/month) and Developer Pro plan ($15/month). Free and Starter plans do not include local testing — you would need to deploy your site to a public URL first.
Yes. You can open multiple browser sessions through the same SSH tunnel. Test your local site in Chrome, Firefox, Edge, Brave, and Tor simultaneously to catch cross-browser issues before deploying.
Ready to Test Localhost?
Start with a free session to see how MyBrowser works, then upgrade for SSH tunnel access.