Trezor Bridge

Secure Connection for Trezor Hardware Wallets

Trezor Bridge is the official communication tool that enables secure, seamless interaction between your Trezor hardware wallet and browsers or apps. It ensures that your crypto transactions and wallet commands flow safely while your private keys remain offline and protected.

Download Trezor Bridge

Key Features of Trezor Bridge

Encrypted Communication

Encrypted Communication

Trezor Bridge ensures an encrypted channel between your computer and your Trezor device. Commands and responses are exchanged under strong cryptographic protection.

Browser Compatibility

Browser & App Compatibility

Works with major browsers (Chrome, Firefox, Edge) and apps like Trezor Wallet and dApps using Trezor Connect.

Lightweight Background

Lightweight & Transparent

Runs quietly in the background with minimal overhead — you typically won’t see it, but it enables all Trezor interactions under the hood.

Cross Platform

Cross‑Platform Support

Available for Windows, macOS, and Linux — ensuring that Trezor Bridge operates across all major desktop environments.

Auto Updates

Automatic Updates

Bridge is updated automatically through the Trezor software update system, ensuring you always run a secure, patched version.

Fallback Support

Fallback for Deprecated Apps

Serves as a reliable fallback for secure communication when browser extension or legacy apps are phased out.

How Trezor Bridge Works — Under the Hood

Trezor Bridge is a local intermediary that bridges communications between your browser/app and your Trezor device. It ensures that all commands, signatures, and responses are handled securely — without exposing your private keys.

  1. Install Bridge: You download Bridge from the official Trezor site and install it. It runs locally (usually on localhost).
  2. Connect Your Trezor: Plug in your hardware wallet and unlock with PIN. Bridge recognizes and establishes the connection.
  3. Request Relay: When a web app issues a request (like “get address” or “sign transaction”), it forwards it to Bridge.
  4. Forward to Device: Bridge passes the request to your Trezor. The device shows the details for confirmation.
  5. User Confirmation: You confirm the operation on the Trezor’s screen. It signs the transaction if approved.
  6. Response Return: Bridge relays the signed data or result back to the web app.
  7. Security Isolation: Private keys never leave your device. Bridge only carries non-sensitive data and signed outputs.
  8. Session Management: Bridge manages sessions and may require reconnection or reauthorization after inactivity.
Trezor Bridge Flow Diagram

Download & Set Up Trezor Bridge

Enable secure Trezor operations by installing Bridge with these steps:

  1. Go to the official page: Visit trezor.io/bridge to get the latest Bridge installer.
  2. Select your OS: Download for Windows, macOS, or Linux.
  3. Install: Run the installer and follow the prompt; no reboot required in most cases.
  4. Open Trezor Wallet or compatible app: Use wallet.trezor.io or desktop clients.
  5. Connect & Unlock Device: Insert and unlock your Trezor, authorize the connection.
  6. Test: Try viewing addresses, signing, or a small transaction to confirm Bridge works.
  7. Maintain: Bridge updates automatically to newer versions delivered with Trezor software updates.

Support & Troubleshooting

Having connectivity issues? Try these fixes:

Restart Bridge

Restart Bridge / Browser

Close Bridge or your browser and reopen. This often clears transient connectivity issues.

Check USB

Check USB Cable & Port

Use a known working data-capable USB cable directly (not through hubs). Ensure firm connection.

Reinstall Bridge

Reinstall Bridge

Uninstall the existing Bridge version and install a fresh copy from the official site.

Firewall Settings

Allow Localhost / Firewall

Ensure local host ports (used by Bridge) aren’t blocked by firewall or antivirus software.

Need more help? Visit Trezor Support or the official community forums.