: Some developers extract firmware and run it using QEMU or similar virtualization tools to emulate the router's internal hardware architecture.
If you have a physical device, you don't always need an emulator to see the interface. You can access the live management panel locally: technicolor router emulator
: These are often hosted by ISPs or third-party documentation sites. They are interactive screenshots or HTML replicas of the admin panel (like the TG588v v2 interface ) that allow you to click through menus. : Some developers extract firmware and run it