Trezor Bridge is a small software application designed to enable communication between your computer and your Trezor hardware wallet. It essentially replaces older browser plugins and acts as an intermediary layer, ensuring that Trezor Suite or any other supported interface can detect, connect to, and communicate with your physical device. Without Trezor Bridge, the browser may fail to identify your Trezor hardware wallet, preventing access to wallet features, transaction signing, and crypto management.
Its core purpose revolves around three pillars: compatibility, security, and performance. Trezor Bridge ensures that communication channels remain open and encrypted, giving users a smooth experience across different operating systems such as Windows, macOS, and Linux.