SubsCheck-Win-GUI is a Windows desktop application for auditing proxy subscriptions and testing the performance of individual proxy nodes. It provides a graphical interface that lets users validate proxy subscription links by checking each node for connectivity and speed, and then measures latency and throughput to produce clear numerical metrics on connection quality.
The application is built around a background worker model that keeps the desktop interface responsive during long-running validation and speed tests. It can parse proxy subscription URLs into individual node entries, run them through a structured validation pipeline, and then export the results—either to local files or to remote cloud storage destinations such as Cloudflare R2, GitHub Gist, or WebDAV. The exported data is formatted so that management tools like v2rayN and Clash-based clients can read and use it.
The tool also collects speed-and-stability metrics for each node, giving users a quantitative basis for evaluating which proxies are active and fast. Audit results and speed test outcomes can be saved for later review or sharing, making the application a self-contained utility for managing and monitoring proxy subscriptions on Windows systems.
