A trusted communication layer that enables seamless interaction between your Trezor hardware wallet and web-based applications
Trezor Bridge is an essential background service that allows Trezor hardware wallets to communicate securely with supported web browsers. It acts as a connection layer, ensuring that your device can exchange information with web-based wallet interfaces without exposing sensitive data.
Unlike browser extensions or third-party plugins, Trezor Bridge operates silently in the background. Once installed, it automatically detects when a compatible website or application requires access to your Trezor device. This design minimizes user interaction while maintaining a high standard of security.
The primary purpose of Trezor Bridge is to establish a trusted pathway between your hardware wallet and browser-based tools such as Trezor Suite Web or other supported cryptocurrency platforms. This allows users to manage assets, sign transactions, and verify actions directly on their physical device.
Because Trezor Bridge is developed and maintained by Trezor®, it follows strict security guidelines. It does not store private keys, monitor user activity, or transmit sensitive information externally. Its sole responsibility is enabling secure device-to-browser communication.
To understand how this process functions technically, continue to How Trezor Bridge Works.
At its core, Trezor Bridge functions as a local service running on your computer. When your browser attempts to interact with a Trezor device, it sends a request to Trezor Bridge rather than connecting directly to the hardware.
This intermediary role is crucial. Browsers are intentionally restricted from accessing USB devices directly for security reasons. Trezor Bridge safely bypasses this limitation by handling USB communication locally, ensuring that only authorized applications can communicate with the wallet.
Once the request reaches Trezor Bridge, it is forwarded to the connected Trezor device. The device then processes the request internally. Actions such as transaction signing or address verification must be confirmed physically on the hardware wallet screen.
After confirmation, the response travels back through Trezor Bridge to the browser interface. At no point are private keys exposed, transmitted, or stored on the computer or online environment.
This architecture makes Trezor Bridge a vital component for users who prefer browser-based wallet management without compromising on the offline security benefits of a hardware wallet.
For users installing the service for the first time, the process is explained in detail in the Trezor Bridge Setup section below.
Setting up Trezor Bridge is a straightforward process designed for users of all experience levels. The service is available for major operating systems, including Windows, macOS, and Linux.
After downloading the official installer, Trezor Bridge runs automatically in the background once installed. There is no need to launch the application manually. When you connect your Trezor device and open a compatible browser interface, the bridge activates seamlessly.
If an update is required, the software notifies the user or updates automatically, depending on system settings. Keeping Trezor Bridge updated ensures compatibility with the latest browser changes and security improvements.
In rare cases where connection issues occur, restarting the service or reconnecting the device usually resolves the problem. The lightweight nature of Trezor Bridge ensures it does not impact system performance or user experience.
Once installed, users can focus on managing their assets without worrying about the underlying communication process, which remains secure and invisible.
Security is the foundation of Trezor Bridge. The service does not collect personal data, track user activity, or access private keys. All sensitive operations remain isolated within the Trezor hardware wallet itself.
Each transaction request must be confirmed manually on the device screen. This eliminates the risk of unauthorized transfers caused by malware, phishing attempts, or compromised browsers.
Trezor Bridge uses encrypted local communication channels to prevent interception or tampering. Because it operates entirely on the user’s machine, no information is sent to external servers.
The open-source philosophy behind Trezor products also applies to Trezor Bridge. Security researchers and developers can review the code, ensuring transparency and continuous improvement.
By combining physical confirmation, local-only communication, and open-source development, Trezor Bridge maintains a high level of trust among security-conscious users.
Without Trezor Bridge, browser-based wallet interactions would be limited or require less secure alternatives. The bridge enables a balance between usability and security, allowing users to interact with decentralized applications while keeping keys offline.
For users who prefer web interfaces over desktop software, Trezor Bridge provides essential functionality without sacrificing control. It ensures that every action is verified at the hardware level.
As browsers continue to evolve and tighten security restrictions, services like Trezor Bridge play an increasingly important role in maintaining compatibility between hardware wallets and modern web technologies.
In combination with Trezor Suite and the Trezor hardware wallet, Trezor Bridge completes a secure ecosystem designed for long-term digital asset protection.