Trezor Bridge — Connect Your Trezor Securely

A clear, secure bridge between your Trezor hardware wallet and desktop web apps.
Secure

Reliable local connection for your Trezor device

Use Trezor Bridge to create an encrypted, local-only USB communication channel between your browser and your Trezor hardware. Bridge avoids untrusted browser plugins, reduces attack surface, and keeps signing operations on-device.

Why Bridge matters

1

Local & encrypted

Bridge runs locally and uses secure channels to forward requests to your Trezor. Keys never leave the device — Bridge only transmits signing requests.

2

Cross-platform

Works with Windows, macOS and many Linux distributions. Install once and compatible web wallets will detect your device automatically.

3

Minimal footprint

Lightweight background service with a small memory footprint. Designed to run silently and update securely when needed.

Quick setup

  1. Download the official Bridge installer from the official Trezor website and run the installer.
  2. Connect your Trezor via USB and unlock with your PIN on the device.
  3. Open a supported web wallet or Trezor Suite — Bridge will be discovered automatically.
  4. Approve any transaction on the Trezor device; never enter your seed or PIN into a web form.

Best practices

Always verify the website's URL, keep Bridge updated, and never install software from untrusted sources. Use the device's display to confirm addresses and amounts before approving.

Frequently Asked Questions

1. What is Trezor Bridge and do I need it?

Bridge is a local USB bridge service that securely forwards messages between your browser and a Trezor device. Many web wallets require it to detect and communicate with a connected Trezor. If a web app says "Install Bridge", you'll need it.

2. Is Bridge safe to install?

Yes — when downloaded from the official source. It runs locally and does not transmit your seed phrase. Make sure you verify the download URL and signature if provided by the vendor.

3. My browser cannot detect my Trezor — what should I try?

Ensure Bridge is running (check your system tray or background services), reconnect the USB cable, try a different USB port, and confirm that no other software is blocking USB access. Rebooting often resolves driver conflicts.

4. Does Bridge support mobile devices?

Bridge is primarily a desktop service. For mobile, some wallets support direct WebUSB or companion apps — check the wallet documentation for mobile compatibility.

5. How do I update or uninstall Bridge?

On Windows/macOS use the official uninstaller or native app management. Updates are released by the vendor; install updates from the same trusted source to maintain security.