Trezor Bridge

What is Trezor Bridge?

Trezor Bridge is a lightweight communication tool developed by SatoshiLabs that allows web applications and services to securely communicate with your Trezor hardware wallet. It acts as a middleware layer between your browser (or desktop environment) and the Trezor device, ensuring a seamless and secure experience.

Modern web browsers often limit or restrict direct USB communication due to security policies. Trezor Bridge solves this by running as a local background service, giving your browser the ability to interact with the device without requiring browser extensions or plugins.

This bridge ensures you can perform wallet functions—such as sending and receiving cryptocurrencies, verifying transactions, or signing messages—directly from supported apps, with full privacy and security.

Key Features of Trezor Bridge

• Secure USB Communication: Safely routes USB commands from browser to device.
• Cross-platform Support: Works on Windows, macOS, and Linux.
• No Extensions Needed: Eliminates the need for browser extensions.
• Auto-Start Background Service: Bridge runs silently in the background on system startup.
• Automatic Updates: Ensures you always have the latest features and patches.
• Localhost Access: API is exposed only locally for security.

With these features, Trezor Bridge streamlines wallet interactions and ensures compatibility across a wide range of platforms and applications.

How to Install Trezor Bridge

Setting up Trezor Bridge is simple. Follow the steps below to install it on your system:

1. Visit the official Trezor website at trezor.io/start.
2. Download the Trezor Bridge installer for your operating system (Windows, macOS, or Linux).
3. Run the installer and follow the on-screen instructions to complete the setup.
4. After installation, restart your browser to ensure it detects the Bridge service.
5. Connect your Trezor hardware wallet via USB and access Trezor Suite in your browser.

Once installed, the service will start automatically in the background each time you boot your system.

Security and Privacy

Trezor Bridge is built with security at its core. All communication between your browser and hardware wallet remains local—nothing is sent to third-party servers. This ensures full privacy and data protection.

Additionally, Trezor Bridge enforces user confirmation for all sensitive operations. That means any transaction, key export, or message signing must be physically confirmed on the device. This eliminates the risk of remote access or malware executing unauthorized actions.

The service is also open source, meaning the codebase can be audited and reviewed by the community. This transparency adds another layer of trust and accountability.

Frequently Asked Questions

Do I need Trezor Bridge if I use the desktop Trezor Suite?

No. Trezor Suite for desktop connects directly to your hardware wallet without needing Bridge. Bridge is mainly for browser-based operations.

Is Trezor Bridge safe to install?

Yes. It is officially developed and maintained by SatoshiLabs. Always download it from trezor.io/bridge.

Can I uninstall it later?

Yes. If you're no longer using browser-based Trezor tools, you can safely uninstall Bridge from your system.

Why isn’t my browser detecting my Trezor device?

This could be due to missing drivers, an outdated Bridge installation, or browser settings. Restart your computer, reinstall Bridge, and try again.

Is Trezor Bridge compatible with all browsers?

Most modern browsers are supported, including Chrome, Firefox, and Edge. Safari support may vary based on macOS security settings.