Ultraviolet Proxy May 2026

Despite its "stealth" reputation, the technology is not inherently malicious. There are several high-value, legitimate applications:

Because Ultraviolet rewrites HTTPS responses, it essentially performs a "Man in the Middle" (MITM) on itself. Modern browsers may display ERR_CERT_AUTHORITY_INVALID if the SSL configuration is not perfect.

# Clone the repository
git clone https://github.com/titaniumnetwork-dev/Ultraviolet
cd Ultraviolet
Disclaimer: The following is for informational purposes only and does not constitute legal advice.
The legality of using an Ultraviolet Proxy depends entirely on jurisdiction and intent.
You might need this technology if you answer "yes" to any of the following: ultraviolet proxy

If so, a standard VPN is failing you. You are in the "UV spectrum" of networking—visible to the filters, but just out of reach of privacy.
The proxy landscape is crowded. Here is how Ultraviolet stacks up against its cousins:
Relying on public Ultraviolet instances is risky (see the "Risks" section below). The safest way to use this technology is to self-host.
Prerequisites: A VPS (Virtual Private Server) with Node.js installed, or a static hosting service (like Vercel/Netlify). Despite its "stealth" reputation, the technology is not
Method 1: Node.js Deployment (Full Features)

Method 2: Static Hosting (Serverless)
Ultraviolet can run entirely on a CDN. You can deploy the static files to Netlify or Cloudflare Pages for free.


Protocols & interfaces



Performance & scalability



Security & privacy



Data management



Developer & operator tools