Trezor® Bridge — Secure, local connection to your hardware

Trezor Bridge is a lightweight local service that securely connects your computer and supported web apps to your Trezor hardware wallet. It handles USB and browser communication so you can focus on managing assets with confidence. This guide explains why Bridge exists, how to install and verify it, and best practices to keep your setup secure.

What Bridge does (simply)

Bridge runs locally and mediates secure communication between your browser or Trezor Suite and the physical hardware device. It never transmits your private keys off the device and it does not act as a remote server — everything stays under your control.

Local helper

Runs on your machine as a small background service, avoiding fragile browser plugin workflows.

Secure channel

Establishes a trusted channel between app and device; each transaction must be approved on the Trezor screen.

Browser friendly

Enables web apps to access hardware wallets in a secure, standardized way with minimal user friction.

Small footprint

Designed to be minimal, updatable, and easy to run across Windows, macOS and Linux systems.

Quickstart — install & connect (about 10 minutes)

Download Bridge from the official site. Choose the package for your OS.
Verify the file using the published checksum or signature (recommended for high assurance).
Install following the installer prompts. Bridge will run in the background after login.
Open Trezor Suite or a supported web app — it will detect Bridge and prompt to connect your device.
Connect your Trezor using USB and confirm prompts on the device screen.

Tip — if a web app can't find your device, check that Bridge is running (system tray / background services), confirm permissions, and ensure your browser is up to date.

Security & privacy

Bridge adheres to the same security mindset as Trezor hardware: private keys never leave the device, and sensitive operations require explicit approval on the Trezor display. Follow these practices to maximize safety:

Verify downloads

Always compare installer checksums or signatures with values published on the official site before running installers.

Least privilege

Grant only required OS permissions. Bridge requests minimal privileges needed to access USB devices safely.

Device confirmation

Every sensitive action is shown on your Trezor screen for manual approval — this defeats malware attempting silent transactions.

FAQ — short answers

Do I need Bridge for my Trezor?

For most desktop/web workflows Bridge is recommended. Advanced users can use alternative methods, but Bridge simplifies and secures device access.

Is Bridge open-source?

Core components are auditable and documentation links to repositories and verification instructions are provided on the official site.

What platforms are supported?

Bridge provides installers for Windows, macOS and Linux. Server-side packages and CLI options are available for advanced deployments.

Where do I get help?

Use the official support portal or community forums. Never share your recovery seed or private keys with support.