Trezor Bridge — Secure Connection for Your Trezor

Overview — what is Trezor Bridge?

Trezor Bridge is lightweight middleware that enables secure communication between your Trezor hardware and applications on your computer or browser. Trezor Bridge handles USB, WebUSB, and platform-specific quirks so apps can focus on wallet UI and transaction flows. Using Trezor Bridge means your device signs transactions locally while the app offers a rich interface — the core of secure, user-friendly crypto management.

Why Trezor Bridge matters

Without reliable bridging software, connecting a hardware wallet is fragile. Trezor Bridge ensures stable device detection, secure transport, and consistent behavior across Windows, macOS, and Linux — reducing support friction while maintaining strong security boundaries for private keys.

Cross-platform

Trezor Bridge supports major desktop systems and modern browsers.

Secure transport

Encrypted channels and careful permission handling protect interactions with Trezor Bridge.

Seamless UX

Automatic detection and clear prompts make using your hardware simple with Trezor Bridge.

Get started — install Trezor Bridge

Download: Choose the right package for your operating system from a trusted distribution point.

Verify: Check signatures and SHA256 checksums when available to confirm integrity.

Install: Run the installer and follow prompts. Grant permissions only when you trust the host app.

Restart apps: Restart your browser or wallet apps to ensure Trezor Bridge is detected.

Connect device: Plug in your Trezor and confirm device prompts. Your application should now show the connected device via Trezor Bridge.

Note: On some systems, browser policies or USB permissions require an additional restart or elevated privileges. Follow the OS prompts carefully for the smoothest Trezor Bridge setup.

Troubleshooting — common Trezor Bridge issues

If your device is not detected, check cable and USB port health first. Confirm that Trezor Bridge is running (look for the system tray icon or a running process). On macOS and Windows, security/privacy settings may block USB access — allow the browser or app to access USB devices. Reinstalling Trezor Bridge and rebooting the host machine often resolves transient conflicts.

Permissions & browser notes

Modern browsers restrict USB access through WebUSB or require native helper apps. Trezor Bridge bridges these gaps safely; however, browser updates or extensions may temporarily interfere. If you experience problems, disable privacy extensions briefly and retry the connection process.

Security best practices with Trezor Bridge

Only download Trezor Bridge from trusted sources and verify integrity.

Keep Trezor firmware and Bridge versions up to date for security patches.

Never share your recovery seed or passphrase with any app — Trezor Bridge only transmits non-sensitive metadata and signed transaction data.

Use a secure host machine (patched OS, up-to-date browser) to minimize attack vectors when using Trezor Bridge.

Remember: Trezor Bridge facilitates secure communication, but the overall safety depends on following hardware wallet security rules.

Developer & integration notes

Developers building wallet integrations can rely on the consistent APIs exposed by Trezor Bridge. Implement careful user prompts, show on-device confirmations, and avoid storing sensitive data. When integrating, respect cross-origin rules, check user permissions, and gracefully handle device disconnects to maintain a robust user experience.

FAQ — Quick answers about Trezor Bridge

Is Trezor Bridge required?

For many desktop and browser workflows, Trezor Bridge is required to enable communication with the Trezor device on certain operating systems. Some web APIs may substitute, but Bridge remains the most reliable approach.

Will Bridge access my seed?

No. Trezor Bridge only transports non-sensitive data and signed requests. Private keys and recovery seeds remain inside the hardware device at all times.