What Is Trezor Bridge?
Secure Communication Tool for Trezor Hardware Wallets
Trezor Bridge is a lightweight software component that enables secure communication between a Trezor hardware wallet and a web browser. It acts as a connection layer that allows web-based wallet interfaces and services to interact safely with the Trezor device while keeping private keys fully offline.
Trezor Bridge is primarily used when accessing Trezor through browser-based platforms instead of the Trezor Suite desktop application.
Purpose of Trezor Bridge
The main purpose of Trezor Bridge is to provide a secure and reliable connection between the Trezor hardware wallet and supported web applications. Since modern browsers restrict direct USB communication for security reasons, Trezor Bridge serves as the trusted intermediary that makes this connection possible.
It ensures that sensitive operations are properly routed to the hardware wallet without exposing private keys.
How Trezor Bridge Works
When installed on a computer, Trezor Bridge runs quietly in the background. When a supported web wallet or service attempts to communicate with a connected Trezor device, Trezor Bridge detects the request and securely forwards it to the hardware wallet.
All cryptographic operations still occur on the Trezor device itself, and every action must be confirmed physically on the wallet.
Key Features of Trezor Bridge
Secure Device Communication
Trezor Bridge enables encrypted communication between the browser and the hardware wallet.
Background Operation
Once installed, it runs automatically without requiring manual interaction.
Cross-Browser Compatibility
Trezor Bridge supports major web browsers, allowing users to access compatible web wallets securely.
Hardware-Level Confirmation
All sensitive actions still require confirmation on the Trezor device screen.
When Trezor Bridge Is Needed
Trezor Bridge is mainly required when:
- Using older or web-based Trezor wallet interfaces
- Accessing third-party web services that support Trezor
- Browser-based applications cannot connect directly via USB
Users who rely solely on the Trezor Suite desktop app typically do not need Trezor Bridge.
Security Considerations
Trezor Bridge does not store private keys, recovery seeds, or sensitive user data. It only facilitates communication. Even if a computer is compromised, transactions cannot be approved without physical confirmation on the Trezor device.
Final Thoughts
Trezor Bridge plays an important supporting role in the Trezor ecosystem. By enabling secure browser communication, it allows users to interact with web-based services while maintaining the core security benefits of a hardware wallet.