Trezor Bridge® — Connect Your Trezor to Web Browsers

A lightweight bridge between your Trezor hardware wallet and modern browsers for secure web-based access to your cryptocurrency.

What is Trezor Bridge?

Trezor Bridge is a small desktop application that safely brokers communication between your Trezor hardware wallet and web browsers. When you connect a Trezor device to your computer via USB, Bridge enables websites and browser extensions — like Trezor Suite or compatible web wallets — to communicate with the device without exposing secret information. This keeps sensitive operations (signing transactions, exporting public keys) physically gated by the device and under your direct control.

How it works (in short)

When you plug in a Trezor, your browser cannot talk to it directly due to security sandboxing. Trezor Bridge runs locally on your machine and exposes a safe API over localhost. Web applications send requests to Bridge; Bridge forwards them to the Trezor device, receives responses, and returns them to the app — with every critical action confirmed on the device screen by you.

Installation & compatibility

1. Download

Get the latest Bridge installer from the official Trezor website. Always verify you are on the genuine Trezor domain before downloading.

2. Install

Run the installer for Windows, macOS, or Linux. Bridge runs in the background and starts automatically when you plug your device in.

3. Use

Open a supported web wallet or Trezor Suite in your browser and follow the on-screen prompts. You may need to approve the connection on the device.

Browsers: Chrome, Edge, Brave, Firefox, and other Chromium-based browsers are supported. For best results, keep both your browser and Bridge updated.

Security highlights

All private keys remain on the Trezor device and never leave it.
Bridge only forwards messages — it cannot sign transactions by itself.
Every sensitive action requires physical confirmation on the device’s screen and buttons.
Bridge exposes a localhost interface; it does not open your device to the network.

Troubleshooting tips

If a browser doesn't detect your device, try restarting Bridge and reconnecting the USB cable.
Use an official cable and avoid USB hubs when possible.
Disable other wallet extensions temporarily — sometimes they conflict.
On macOS, you might need to grant Bridge permissions under System Preferences -> Security & Privacy.

Quick commands

To check Bridge status, open your system tray (Windows) or menu bar (macOS) and click the Bridge icon. If you prefer the terminal, you can view Bridge logs or restart the service using platform-specific commands documented on the official site. Always consult official docs before running advanced commands.

FAQ

Do I need Bridge for Trezor Suite?: In most cases, Trezor Suite uses its own connection method; Bridge is primarily for browser-based wallets. However, installing Bridge is harmless and can improve compatibility.
Is Bridge open source?: Yes — Trezor publishes source code for its tooling. Review the repository on the official website if you want to audit the code.
Can Bridge be used remotely?: No. Bridge communicates over localhost and is designed for local, direct communication only.

Learn more & download

Always download Bridge from the official Trezor website and verify links before proceeding.