VPN分流助手 is a Chrome extension that automates VPN toggles on macOS for users managing regional routing. It monitors visited URLs and triggers system-level network switches through Keyboard Maestro, holding page navigation until the correct route is in place. The extension provides one-click domain categorization and custom rule lists for split-tunneling. It targets advanced macOS users and developers who need browser-level routing control without manual VPN switching, reducing accidental routing through slow proxies.

What is VPN分流助手 used for?

The extension acts as an intelligent traffic controller inside Chrome by intercepting navigation and deciding whether a destination should use a VPN or a direct connection. It does not provide VPN servers; instead, it triggers macOS automation to change the system network state using a kmtrigger protocol. It is a bridge tool, not a VPN provider, so routing decisions occur at the system level via external automation.

How does secure resumption affect page loading?

Navigation can pause while the tool ensures the network environment matches the chosen route, a behaviour implemented as a secure resumption handshake. The extension uses a hotkey handshake (Shift+Alt+L) to release navigation only after the network switch confirms, which prevents accidental proxying of local sites but introduces a visible delay when a macro runs before the page loads.

What privacy and data handling should users expect?

The extension inspects visited URLs to decide routing and invokes Keyboard Maestro macros through kmtrigger:// URIs; that is its explicit data interaction. Because it relies on an external VPN client, the extension itself does not route traffic or act as a tunnel. Users should treat the tool as a controller that makes routing decisions based on URL matching rather than as a traffic endpoint.

Who is this setup intended for and what does it require?

This tool targets advanced macOS users and developers who already use system automation for network tasks. It requires Chrome, macOS, and installation of Keyboard Maestro to toggle VPN states. A practical workflow is to test new domain rules on a small set before expanding lists, since the extension uses personalized lists to split traffic and a mistaken rule can affect multiple sites.

A focused automation tool best suited to power users

The extension is a practical choice for advanced users who accept an automation-based workflow to gain precise split-tunneling control; it trades manual simplicity for deterministic routing. Casual users or those who prefer a self-contained VPN service are likely better served by clients with built-in smart routing, because this tool depends on external macros and a configured automation environment.