The Secure Link to Your Digital Assets
Trezor Bridge is a vital background application that creates a seamless and secure communication channel between your Trezor hardware wallet and your browser. It’s the essential utility for ensuring robust, reliable, and private connections to your crypto.
Download for Your OSWhat is Trezor Bridge?
Trezor Bridge is a small, open-source application that runs silently in the background of your computer. Its sole purpose is to enable communication between your Trezor device, which is connected via USB, and web-based applications like the Trezor Suite for Web.
In the past, browsers required special plugins to talk to hardware devices. As technology evolved, direct communication methods like WebUSB were developed, but they aren't universally supported across all browsers. Trezor Bridge solves this by providing a universal and stable method of connection that works reliably, ensuring you can always access your assets regardless of your browser's specific capabilities. It acts as a private, local messenger between your hardware and the web interface.
The Engine of Secure Communication
Runs Locally on Your PC
After installation, Trezor Bridge runs as a background process on your computer. It creates a local web server that is only accessible from your machine. This means no data is ever sent over the public internet.
Listens for Requests
When you visit Trezor Suite for Web, the website sends a request to this local server. The Bridge "listens" for these requests, acting as a designated go-between for the browser and your hardware wallet.
Relays Securely to Device
The Bridge translates the browser's request into a command your Trezor device understands and sends it via USB. The device signs the transaction and sends the response back through the Bridge to the web app. Your private keys never leave the Trezor.
Simple 3-Step Installation
Download
Click the download button on our official website. Choose the correct version for your operating system (Windows, macOS, or Linux).
Install
Open the downloaded file and follow the simple on-screen instructions. The installation is quick and requires no special configuration.
Connect
Once installed, Trezor Bridge will start automatically when you boot your computer. Simply plug in your Trezor and visit Trezor Suite for Web to begin.
Your Questions Answered
Is Trezor Bridge secure? Does it see my private keys?
Trezor Bridge is extremely secure. It is open-source, meaning its code can be audited by anyone. Its only job is to relay encrypted data between your device and browser. It has no access to your private keys, which are cryptographically protected and never leave your Trezor hardware wallet. The communication it facilitates is purely for transaction data, not your secret keys.
Do I need Trezor Bridge if I use the desktop version of Trezor Suite?
No. The desktop version of Trezor Suite has the necessary communication protocols built directly into the application. Trezor Bridge is specifically designed for users who prefer to use the web-based version of Trezor Suite or other compatible third-party web wallets.
Why doesn't Trezor just use WebUSB for all browsers?
While WebUSB is a modern standard that allows direct browser-to-device communication, its implementation is not consistent across all browsers. Some popular browsers have limitations or have disabled it by default due to security considerations. Trezor Bridge provides a unified, stable, and backwards-compatible solution that guarantees a working connection for all our users, regardless of their browser choice.
How do I know if Trezor Bridge is running correctly?
Trezor Bridge runs as a background process, so you won't see a main application window. You can check if it's running in your system's activity monitor or task manager (look for "trezord"). The easiest way to confirm it's working is to connect your Trezor and visit the Trezor Suite website; if your device is detected, the Bridge is functioning perfectly.