Trezor Bridge is the official background service developed by Trezor® that allows secure communication between your Trezor hardware wallet and supported web-based applications. It acts as a trusted connection layer, ensuring that data exchanged between your browser and hardware device remains safe and authenticated.
Trezor Bridge is a lightweight software component that runs on your computer and enables browsers to detect and interact with your Trezor device. Without this bridge, web interfaces would not be able to communicate directly with the hardware wallet.
It replaces older browser extensions and provides a more stable, secure, and future-proof method of device communication.
Modern web browsers are designed with strict security restrictions that prevent direct access to connected USB devices. Trezor Bridge solves this limitation by acting as an intermediary between the browser and your Trezor hardware wallet.
This architecture keeps sensitive operations isolated from the browser environment.
Once installed, Trezor Bridge runs quietly in the background. When you visit a supported web application, the site communicates with Trezor Bridge, which then securely forwards requests to your hardware device.
All critical actions, such as signing transactions or confirming addresses, must still be approved directly on the Trezor device screen.
Trezor Bridge is mainly required when using Trezor with browser-based wallets or third-party web interfaces. For desktop applications like Trezor Suite, Bridge may not be necessary as communication is handled internally.
Trezor Bridge supports major operating systems, including Windows, macOS, and Linux. Installation is simple and typically requires no configuration after setup.
Once installed, your browser will automatically detect the running service whenever a compatible site is accessed.
Older wallet solutions relied on browser extensions, which could introduce security and maintenance issues. Trezor Bridge offers a cleaner and more secure alternative.
If your browser does not detect your Trezor device, consider the following steps:
Using official software and keeping it up to date minimizes most connectivity issues.
Trezor Bridge plays a vital role in enabling secure interaction between Trezor hardware wallets and web-based applications. By acting as a trusted communication layer, it allows users to enjoy the convenience of web interfaces without compromising the security of offline private keys.
For users who interact with browser-based crypto services, Trezor Bridge is an essential component of a safe and reliable setup.