GoKawiilRouler tool lets Windows users route each app's traffic through a different network interface
Rouler is a new Windows utility that allows users to assign individual applications, or specific IP addresses, to separate network interfaces at the same time. For example, a browser could use a privacy VPN, a work app could use a corporate tunnel, and other traffic could go through the normal connection simultaneously. The developer describes it as working purely at the network layer, distinct from a VPN or firewall.
GoKawiil's interpretation of the reporting above, not reported fact.
Split tunnelling tools like this could appeal to remote workers and privacy-conscious users who want finer control over which traffic goes through which network path without manually switching connections. Because it operates at a lower level than typical VPN clients, it may offer more flexibility, though its effectiveness will depend on how reliably it integrates with Windows networking and existing VPN software.
- Rouler enables per-app or per-IP routing across multiple network interfaces on Windows.
- Multiple interfaces (e.g., VPN, work tunnel, regular connection) can run concurrently for different apps.
- It is explicitly not a VPN or firewall, but a network-layer traffic router.
Source: rouler.io, 2026-10-20
Published there as: “Show HN: Rouler – Steer Windows traffic per app or IP across multiple interfaces”
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