Tabbit
Bring open pages into the same conversation
Open the pages you want to compare, reference them with @ and ask Tabbit to pull out the details you need.
See AI tab managementVirtual browser online
A virtual browser runs on a remote server or inside a virtual machine. Online services let you control that browser in a tab you already have open, without installing a second browser.
Free virtual browsers you can open without a download
Pick a service based on what you need to do. A free session, an ad-supported plan and a free trial come with different limits.
Browser.lol
For temporary browsing. Open a fresh cloud session through the ad-supported free plan. Check the plan before relying on a specific location or file transfer.
Visit Browser.lolBrowserling
For a quick check in another browser version. Enter a URL and choose the browser you want to test. Browserling lists three minutes for its free test.
Visit BrowserlingBrowserStack
For compatibility testing. Use the free trial to evaluate a site across browsers and real devices. Check the trial limits before planning a longer QA session.
Visit BrowserStack
How to start a browser-in-browser session
- Open the provider’s launch page. Choose a browser version or device if you need to reproduce a specific issue.
- Start the session, then enter the URL in the remote address bar or the provider’s launch form. Check the time limit and whether the service allows uploads, downloads or login persistence.
- Close the session when you finish. For QA, record the browser, device and steps to reproduce the issue before a temporary session resets.
Cloud browser, local VM, profile or incognito?
| Option | Where the site runs | When to use it |
|---|---|---|
| Cloud browser | On the provider’s infrastructure. You control it from your browser. | A quick remote session or a browser and device you don’t have. |
| Browser in a local VM | Inside a guest operating system on your computer. | A controlled test environment you can configure and reset. Review shared folders and clipboard settings. |
| Browser profile | In your local browser, with separate profile data. | Keep work and personal cookies, bookmarks and sign-ins separate. |
| Incognito window | On your device, in a temporary browsing session. | Avoid saving that session’s site data and history in the browser after closing its private windows. |
Use Tabbit for everyday browser work
Tabbit is an installable AI browser for macOS and Windows. Use it for regular work on sites you trust, such as summarizing a page beside the original.
Delegate a repeatable task
Ask Agent mode to organize information in a spreadsheet. Review the steps and check the result before using it.
Read the browser automation guideVirtual browser FAQ
Is there a free unlimited virtual browser online?
Free plans vary by provider. Check the maximum session length, daily allowance, ads, queue and available browsers. If you need a session that lasts for hours, verify that before starting.
Can I use a virtual browser inside Chrome or on my phone?
Yes, if the service supports your current browser and device. Your Chrome or mobile browser controls the session. For mobile QA, choose a remote device and operating system that match what you want to test.
What is the difference between a virtual browser and a VPN?
A VPN routes traffic through another network endpoint while your browser still runs on your device. An online virtual browser also moves page execution to a remote machine.
Can I sign in or download files in a cloud session?
It depends on the provider. Check who can access session data, what is retained and whether file transfers are enabled. Avoid entering sensitive credentials in an untrusted service. Files you transfer back to your device leave the remote environment.