Trezor Bridge

Secure Connection for Trezor Hardware Wallets

Trezor Bridge is the **official communication tool** that enables **secure, seamless, and reliable** interaction between your Trezor hardware wallet and desktop browsers or applications. With Trezor Bridge, your transactions and commands flow safely while your private keys remain offline.

Download Trezor Bridge

Key Features of Trezor Bridge

Secure Connection

Encrypted Communication

Bridge ensures encrypted channel between your computer and your Trezor device. Commands, responses, and data are exchanged under strict cryptographic protections.

Browser Compatibility

Browser & App Compatibility

Works with major browsers (Chrome, Firefox, Edge) and supports web apps like Trezor Wallet or third‑party sites using Trezor Connect.

Zero Interference

Lightweight & Transparent

Trezor Bridge runs quietly in the background. You rarely see or interact with it—yet it’s critical to enabling all Trezor interactions under the hood.

Cross Platform

Cross‑Platform Support

Available for Windows, macOS, and Linux—ensuring your Trezor Bridge works across all desktop environments.

Automatic Updates

Automatic Updates

Bridge keeps itself updated to the latest secure version when you install Trezor Wallet. Always run the latest, safest Bridge without manual effort.

Secure Fallback

Fallback for Chrome Apps

As browser extensions phase out, Trezor Bridge acts as a dependable fallback for communication previously handled by deprecated Chrome apps.

How Trezor Bridge Works

Trezor Bridge acts as a local intermediary that sits between your web browser or application and your hardware wallet. Here’s a step‑by‑step flow of how it functions:

  1. Install Bridge: Download and install Bridge from the official Trezor site. Once installed, Bridge listens locally (on localhost) for requests.
  2. Connect Device: Plug your Trezor hardware wallet via USB (or supported connection). Bridge detects, identifies, and communicates with it.
  3. Browser Requests: When a web app (like Trezor Wallet or a dApp) issues commands (get address, sign transaction), it forwards the request to Bridge.
  4. Forward to Device: Bridge relays the request to the Trezor device, which displays transaction data for verification.
  5. User Confirmation: You confirm operation on the Trezor hardware device. The device signs or rejects the command.
  6. Response & Broadcast: Bridge sends back the result (signature, address, status) to the web app, which then broadcasts or updates UI accordingly.
  7. Secure Isolation: At no point do private keys leave the device. Bridge only transmits commands and signed outputs, never sensitive secrets.
  8. Session Handling & Timeout: Bridge manages connection sessions; if idle for too long, you may need to reauthenticate your device.
Trezor Bridge Flow Diagram

Download & Setup Trezor Bridge

Ready to enable secure communication for your Trezor? Follow the steps below to download, install, and test Bridge:

  1. Visit Official Trezor Site: Go to trezor.io/bridge to get the latest Bridge installer.
  2. Select Your OS: Choose the installer for Windows, macOS, or Linux.
  3. Install Bridge: Run the installer and follow on-screen prompts. No reboot required in most cases.
  4. Open Trezor Wallet or App: Visit wallet.trezor.io or open your desktop Trezor app.
  5. Connect Device: Plug in your Trezor, unlock with PIN, and authorize the connection.
  6. Test Operation: View addresses, send a small transaction, or sign a message to verify Bridge is working.
  7. Automatic Updates: Bridge will update automatically when newer versions are bundled via Trezor software updates.

Support & Troubleshooting

If you run into issues with Trezor Bridge, here are common solutions and support links:

Restart Bridge

Restart Bridge / Browser

Close and reopen Bridge, or restart your browser. This often resolves connection glitches or detection failures.

Check USB Cable

Inspect USB / Cable

Ensure your cable supports data transfer (not power-only). Use a short high-quality USB cable and connect directly (avoid hubs).

Reinstall Bridge

Reinstall Bridge

Uninstall the current Bridge version, then download and install fresh from official source.

Check Firewall

Allow Localhost / Firewall

Make sure your OS firewall or security software allows Bridge’s local communication. It runs on `localhost` default ports.

For extended help, visit the official Trezor support pages or community forums. The Trezor team maintains detailed guides for Bridge, connectivity, and security. Trezor Support