A lightweight background application that securely connects your Trezor hardware wallet to the apps you trust — in your browser and on desktop.
Secure connection Cross-platform Privacy-focused
Trezor Bridge is a small, purpose-built background application that runs on your computer and mediates communication between a Trezor hardware wallet (the physical device that stores your private keys) and wallet interfaces such as web wallets, browser-based applications, or desktop clients. Bridge handles permissioned device access, USB communication, and message forwarding in a way that isolates the hardware from direct browser-level access while preserving a fast, user-friendly experience.
Trezor Bridge listens locally on your computer and exposes a secure, local API. When a supported web app needs to interact with your hardware wallet, it communicates with Bridge over the loopback interface. Bridge then sends the appropriate commands to the device over USB or WebUSB, returns responses, and enforces a permission model so that only authorized pages can access the connected Trezor. This separation reduces attack surface and keeps sensitive operations confined to the trusted device and Bridge process.
Local-only communication: Bridge does not transmit private keys or secrets over the internet.
Permission prompts: Interactions require user confirmation on the physical device for sensitive actions (e.g., signing transactions).
Cross-platform: Works on major desktop platforms such as Windows, macOS, and Linux.
While modern browsers support WebUSB and related APIs, those capabilities can change across platforms and browser versions. Trezor Bridge provides a stable, predictable integration layer that ensures consistent connectivity for both native desktop wallets and browser-based services. It also centralizes device drivers and improves compatibility with a wide range of applications without requiring each app to ship platform-specific USB code.
Installing Bridge is straightforward. Download the official installer for your operating system, run the installer, and follow the on-screen prompts. Once installed, plug in your Trezor device and open the wallet application of your choice. The first time a webpage or app tries to connect, Bridge will present an authorization handshake and the Trezor will request confirmation for sensitive operations.
Important: always download Bridge from the official Trezor website or a trusted source. Avoid third-party downloads to reduce the risk of tampered binaries.
Bridge is designed with a security-first mindset but it’s only one piece of your overall safety. The hardware wallet itself stores your private keys in a separate secure element; Bridge merely transports encrypted commands between your computer and the device. Always keep these practices in mind:
Verify downloads from the official source and check signatures where provided.
Confirm addresses and amounts on your Trezor’s display before approving transactions.
Keep your computer and browser up to date and avoid running untrusted software while performing transactions.
If Bridge cannot detect your device, try the following steps:
Confirm the USB cable and port are functional — try another cable or port.
Restart Bridge or your computer, then reconnect your device.
Ensure no other application is holding exclusive access to the device.
On some systems, you may need to grant permission or install a driver; consult official setup documentation for platform-specific steps.
If issues persist, consult official support channels and documentation for guided assistance.
Trezor Bridge itself is typically distributed by the manufacturer and the project surrounding Trezor has a long history of open-source tooling. Bridge’s communications are local and do not send private data to remote servers. When possible, prefer official, auditable releases and review available source code or release notes to stay informed about security improvements and feature changes.
Concise highlights for fast reading.
Purpose: Local communication bridge between browser/apps and hardware wallet.
Platform: Desktop (Windows, macOS, Linux).
Primary function: Secure, permissioned USB/WebUSB access.
Risk model: Does not store private keys; confirms sensitive actions on-device.
Do I need Bridge to use my Trezor?Many web-based wallets and some desktop apps rely on Bridge for stable connectivity, though some platforms support direct WebUSB access. Installing Bridge ensures maximum compatibility.Will Bridge ever access my keys?No. Private keys remain on the hardware device. Bridge only forwards commands and responses.Can I uninstall Bridge?Yes — use your operating system’s normal uninstall process. Removing Bridge will prevent some web wallets from connecting until it is reinstalled.
Official documentation and support links should always be your first stop for critical tasks. Look for guides on installation, platform-specific driver notes, and security advisories.
© Trezor Bridge — informational demo page. This page is a sample website content intended to explain the purpose and usage of a connection bridge between hardware wallets and host applications. For official software downloads and support visit the manufacturer's website.