What is workervless2sub?

WorkerVless2sub is a subscription generator for proxy network clients, written in JavaScript and designed to run on Cloudflare Workers or Cloudflare Pages. Its purpose is to automatically test a list of server addresses and produce a filtered subscription file containing only the fastest-responding nodes. The tool supports three proxy protocols: VMess, VLESS, and Trojan. These protocols are commonly used with proxy client applications like Clash and Singbox, which accept subscription URLs as a way to load server configurations rather than requiring manual entry of each server. The core feature is address optimization: you supply a list of server addresses (or a URL pointing to a remote text file of addresses), along with connection details like a UUID or password. WorkerVless2sub tests each address against a configurable minimum speed threshold and generates a subscription containing only the addresses that pass. The address list can come from static configuration, a remote API endpoint, or a CSV file produced by a speed-testing tool. Deployment involves creating a Cloudflare Worker and pasting the project's JavaScript file into it, or connecting a GitHub fork to Cloudflare Pages for automatic rebuilds. Either way, you end up with a URL that proxy client apps poll to get an updated server list. Configuration is done through environment variables set in the Cloudflare dashboard, controlling which protocols to use, what UUID or password to include, which address lists to pull from, and optional Telegram notifications. The README and all documentation are written in Chinese.