TLDR: You can use Browserling and get an online Tor browser for testing your onion websites via The Tor browser runs in the cloud and you get a remote access to it from your browser.


Anonymity and privacy on the Internet have never been more critical. The Tor browser, renowned for its robust privacy features, has long been the go-to option for anonymous browsing. However, not everyone wants to download and install additional software (especially Tor) or might be using a computer where installations are restricted. At Browserling, we created a cloud version of the Tor browser and you can start testing your onion links directly from your standard web browser. This blog post delves into how you can use an online Tor browser via Browserling without any installations.

What Sets the Tor Browser Apart

The Tor browser is a specialized web browser built for anonymity and privacy. It achieves this by routing your web traffic through a network of relay servers, effectively masking your identity and location. Tor, which stands for The Onion Router, encrypts your data in multiple layers, similar to an onion, providing a robust level of security. While the Tor network is what provides this routing capability, the Tor browser is the application that enables easy access to this network for general users.

Foundation on Firefox

At its core, the Tor Browser is built on the Firefox browser. This means that the user interface and many functionalities are similar to those you'd find in Firefox. However, the Tor team has extensively customized this foundation to integrate the Tor protocol and add a myriad of privacy-focused features.

Key Differences from Firefox

Though based on Firefox, the Tor Browser has several specialized features that set it apart, primarily aimed at maximizing user privacy and security:

  • No Browsing History: Unlike Firefox, which maintains a history of visited web pages, Tor Browser doesn't store any such data, ensuring your browsing activities remain unrecorded.
  • Disk Avoidance: In Firefox, web-related data like cookies and local storage are written to the computer's disk. Tor Browser avoids this, minimizing digital traces left behind after your browsing session.
  • Cookie Isolation: The Tor Browser goes beyond standard cookie management by employing a robust mechanism that segregates cookies based on the websites they originate from. This crucial layer of privacy significantly reduces the likelihood of cross-site tracking.
  • Security Extensions: Tor Browser comes bundled with security-focused extensions like HTTPS Everywhere, NoScript, and uBlock Origin. These extensions secure your connection and block potential tracking scripts and ads, whereas in Firefox you would need to install these separately.
  • Anti-Fingerprinting Measures: The Tor Browser has several built-in mechanisms to protect against browser fingerprinting—a method used to identify and track users based on their browser and device settings. These include a fixed window size and a uniform user agent string, features not standard in Firefox.
  • WebRTC Disabled: Web Real-Time Communication (WebRTC) can potentially leak your real IP address. While this feature is active in Firefox for real-time audio and video, it is disabled in the Tor Browser to ensure anonymity.
  • Fixed Safety Levels: The Tor Browser allows users to select from pre-configured safety levels that disable potentially risky features, like JavaScript, to varying extents, providing another layer of security that Firefox does not offer by default.

By designing with user privacy as the cornerstone, the Tor Browser offers a more secure and anonymous browsing experience, despite its foundational similarities to Firefox.

Unlocking the Power of Online Tor Testing

Cloud-based Tor Browser Services

One way to test your website that's hosted on the Tor network without installing anything is through cloud-based services like Browserling. Here, the Tor browser runs on a remote server, and you interact with it through your regular web browser. To access this:

  1. Navigate to Browserling's website.
  2. Choose the Tor browser option.
  3. Input the onion URL you wish to visit and start browsing.

Instant Tor Browser Access with Short URLs

To make access even more effortless, we created a quick link that immediately launches a cloud-based Tor browser that's connected to the Tor network. For instance, using the link, you can get started with anonymous testing in no time.

Why Choose an Online Tor Browser?

  • Convenience: An online Tor browser is incredibly user-friendly; no installation is required.
  • Platform Agnostic: Being web-based, you can access it from any device that has Internet connectivity.
  • Quick Setup : There's no need to configure any settings manually; it's all taken care of by Browserling.

Biggest Tor Advantage: Maintaining Anonymity

Even when using a cloud-based service, the Tor network safeguards your identity by routing your web traffic through multiple nodes, each only aware of the node immediately before and after it in the chain. Thus, the real IP addresses of your website visitors remains hidden from everyone, protecting them from surveillance and potential backlash, especially in countries where freedom of expression is curtailed.

Second Biggest Advantage: No IP Leakage Through JavaScript

The Tor browser's architecture prevents IP address leakage through any means, including JavaScript tricks that might otherwise reveal the visitors' real IP address. This adds an extra layer of censorship resistance and provides a way for citizens to access information without governmental interference.

Closing Thoughts

Using cloud-based services to test websites on the Tor network provides a convenient way for Internet users to maintain their privacy and anonymity without needing to install additional software.

Ready to take your onion site testing browsing to the next level without any installations? Try a cloud-based Tor browser today and test the Internet privately and securely.