Once a request is intercepted, Ultraviolet rewrites the URL to route through a designated Ultraviolet backend server.
If you want to explore deploying your own instance, let me know:
: Includes support for "tab cloaking," which allows a browser tab to be disguised as a common educational site like Google Classroom to hide activity from local monitoring.
Ultraviolet operates as a classic "interception proxy". When a user navigates to a blocked website through the proxy, the browser does not make a direct connection to that website's server. Instead, a service worker script—a JavaScript file that runs in the background of your browser, independent of any web page—captures the HTTP request before it ever leaves your device. ultraviolet sophisticated web proxy
: Frequently used in restricted environments, such as schools or workplaces, to access blocked educational or entertainment resources.
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To set up Ultraviolet, you need a web server capable of running Node.js. The standard deployment stack usually involves: Once a request is intercepted, Ultraviolet rewrites the
The central Ultraviolet repository on GitHub contains the core code and can be built from source. However, the maintainers explicitly note that "this repository can be built, but it can't be deployed to any services". This repository is intended for developers who want to understand the internals of the proxy or integrate Ultraviolet into a larger application.
Install the necessary dependencies. You will need express , uv , and other core libraries.
Network filters only see traffic moving to the harmless proxy URL. 3. Dynamic DOM and Script Rewriting When a user navigates to a blocked website
The entire Ultraviolet framework is open-source. Anyone with basic technical knowledge can deploy their own private instance on cloud infrastructure, ensuring they do not have to rely on public proxy links that are frequently hunted down and blocked by network administrators. Deployment and Implementation
| Component | Function | Sophistication Level | |-----------|----------|----------------------| | | Encrypts all traffic between client and proxy server using standard TLS 1.3 | High – indistinguishable from HTTPS | | Obfuscation Layer | Modifies request/response patterns (e.g., randomizing header order, padding lengths) | Very High – defeats pattern-based DPI | | Dynamic URL Rewriting | Rewrites all links, cookies, and form actions within proxied pages on-the-fly | High – prevents client-side leaks | | Cache & Prefetch | Local caching and speculative fetching to reduce latency | Medium – improves user experience | | WebSocket Relay | Supports real-time protocols (e.g., chat, video) via WebSocket tunneling | Advanced – enables modern web apps |