The Invisible Guardian
Trezor Bridge:
Secure Device Communication
The **Trezor Bridge** is the essential, lightweight application that guarantees a **secure connection** between your **Trezor hardware wallet** and the **Trezor Suite** web application. It’s the mandatory, trusted utility that allows your browser to communicate with your device, ensuring your **private keys** remain **offline** and completely safe during **cryptocurrency management** on the web.
Download Trezor Bridge NowRequired for web access to the Trezor Suite.
The Bridge Function: Why It's Necessary
Modern **web browsers** deliberately restrict direct access to hardware devices like the Trezor via **USB** for obvious **security** reasons. This necessary barrier means that a simple web page cannot directly initiate **device communication**. The **Trezor Bridge** solves this challenge by serving as a dedicated, local proxy. It runs silently in your system tray, listens for connection requests from the browser, and securely relays commands to your **hardware wallet**, ensuring the integrity of your **digital assets**.
Local Communication
The Bridge is a local executable. It never transmits sensitive data over the internet; it only communicates securely between your **web browser** and your device via the localhost connection.
USB Integration
It bypasses the browser's restrictions on direct **USB** access, enabling the necessary, low-level **device communication** protocols required for secure transaction signing.
Always Updated
The **Trezor Bridge** automatically checks for updates, ensuring you always have the latest improvements for the smoothest and most **secure connection** experience with the web interface.
The Security Mandate of the Bridge
In the architecture of **Trezor Suite** web access, the **Trezor Bridge** is a critical **security** layer. It ensures the fundamental principle of **hardware wallet** operation is upheld: the **private keys** must never be exposed to the internet or any potentially compromised software environment. The Bridge only transmits unsigned transaction data to the device and receives the signed transaction back. This process is protected by several core principles.
100% Open-Source Code
Like all Trezor software, the **Trezor Bridge** is completely **open-source**. This level of **transparency** allows independent security researchers and the global crypto community to audit the code. This constant scrutiny is the best guarantee that the Bridge performs its job—securely channeling **device communication**—without any hidden backdoors or vulnerabilities. You are never asked to trust closed-source software with your **digital assets**.
Protocol Isolation and Whitelisting
The Bridge only interacts with the official **Trezor Suite** web addresses. It operates under a strict whitelisting protocol, refusing connection attempts from unknown or potentially malicious third-party websites. This strong filtering mechanism prevents rogue browser tabs or phishing attempts from ever gaining access to your **Trezor hardware wallet** through the Bridge.
No Access to Private Keys
The Bridge's function is purely logistical. It is a conduit, not a storage container. At no point does the **Trezor Bridge** handle or store your **private keys**, **recovery seed**, or **passphrase**. That sensitive information remains locked inside the tamper-proof environment of your physical device, ensuring true **self-custody** and protection for your **cryptocurrency management** activities.
Universal Compatibility, Singular Trust
Designed for Windows, macOS, and Linux, the **Trezor Bridge** provides a consistent, high-grade **secure connection** regardless of your operating system. By standardizing the **device communication** channel, we remove inconsistencies and potential attack vectors often found in diverse, unmanaged environments, ensuring reliable access to the web version of **Trezor Suite** everywhere.
Installation: Get Connected in Seconds
You only need to install the **Trezor Bridge** once to unlock seamless access to your **digital assets** via the web. It is quick, resource-light, and entirely essential for web-based **crypto management**.
Select Your OS
Download the correct installer for your operating system: Windows, macOS, or Linux (Debian/RPM).
Install and Run
Run the installer. The **Trezor Bridge** automatically starts running in the background upon installation and subsequent computer restarts.
Connect to Web Suite
Visit suite.trezor.io, connect your device via **USB**, and the Bridge will instantly establish a **secure connection**.