trezor bridge — Secure Connector for Your Trezor

Reliable USB bridge between hardware wallet and apps

Trezor Bridge is the lightweight, trusted software that enables secure communication between your Trezor device and Trezor Suite (desktop or web). It handles USB connections, device discovery, and encrypted message passing — so you can manage your crypto with convenience and confidence.

What is Trezor Bridge?

Trezor Bridge is a small background application (also called a service) installed on your computer that allows browsers and local apps to discover and communicate with your Trezor hardware wallet over USB. It replaces older browser plugins and creates a secure, consistent channel for signing transactions and managing wallets.

Why it matters

1
Secure device communication

Bridge ensures your browser or Suite talks to your device without exposing sensitive data. Commands are handled locally and signing happens on the hardware wallet.

2
Plug-and-play convenience

With Bridge installed, connecting a Trezor is simple: plug it in, open Suite or the web app, and Bridge takes care of the rest — no fiddly extensions required.

3
Cross-platform support

Available for Windows, macOS, and Linux. Bridge runs as a lightweight background service and updates securely when needed.

How Trezor Bridge works — simply

  1. Install the Bridge app and start the service on your computer.
  2. Plug in your Trezor device via USB (or USB-C with adapter).
  3. Trezor Suite or compatible web apps detect the device through Bridge.
  4. When you create or sign a transaction, the request is forwarded to your Trezor device and displayed on its screen for verification.
  5. You confirm the action on the device — private keys never leave the hardware.

Safety and privacy

Bridge is designed to be minimal and secure: it only facilitates encrypted communication between your computer and the Trezor device. It does not read or transmit your private keys, recovery seed, or transaction secrets. Regular updates and open-source code ensure transparency and quick fixes when needed.

Common uses

  • Connecting Trezor to Trezor Suite (desktop or web).
  • Using browser-based dApps that support hardware wallets.
  • Firmware updates via Trezor Suite.
  • Securely signing transactions for Bitcoin, Ethereum, and other supported networks.

Installation & quick setup

Follow these steps to get Bridge running fast:

  1. Download Bridge from the official Trezor website or the button above.
  2. Run the installer and follow on-screen prompts (Windows may request admin permission).
  3. After installation, plug in your Trezor and open Trezor Suite or the web app.
  4. If the browser asks for permission to use the device, approve it — Bridge handles the connection.

If you run into issues, try restarting the Bridge service or reconnecting your USB cable. Avoid unofficial downloads — always use the official downloads to prevent tampering.

Troubleshooting

  • Device not detected? Check the USB cable and port, ensure Bridge is running, and confirm device firmware is up-to-date.
  • Browser can't connect? Close and reopen the browser, and accept any permission prompts. Some browsers may require a restart after Bridge installation.
  • Updates failing? Use the latest Trezor Suite and Bridge versions from official sources to ensure compatibility.

Developer & advanced use

Developers can integrate with Bridge for local hardware wallet support using official libraries and APIs. Because Bridge exposes a controlled channel to the device, apps must still follow best practices for user consent and transaction verification.