What is Trezor Bridge?

Trezor Bridge is a small desktop service that provides a secure local channel between your operating system and a Trezor hardware wallet. It handles device detection, permission negotiation, and a stable transport layer so web and native wallets can request signatures while keys remain on the device.

Key benefits

Private-by-design

All signing happens on-device. Bridge only relays encrypted requests—no private keys leave your hardware.

Cross-platform

Runs on Windows, macOS and Linux. Bridge smooths over platform differences so wallets work reliably.

Developer-friendly

Stable APIs and documentation make integration into web and desktop wallets straightforward.

Install & quick start

Quick steps

  1. Download Bridge from official sources.
  2. Run the installer and allow the background service.
  3. Reconnect your Trezor and open your wallet app.
  4. Approve device prompts to confirm transactions.
Tip: if the browser doesn't detect the device, try restarting Bridge or your browser.

Command-line (Linux)

sudo dpkg -i trezor-bridge-x.y.z.deb
# or for rpm
sudo rpm -i trezor-bridge-x.y.z.rpm
For macOS and Windows, use the downloadable installers and follow the prompts.

Security checklist

  • Download only from the official site
  • Keep Bridge and firmware up-to-date
  • Confirm every action on your device screen

Troubleshooting

Device not detected? Use a data-capable USB cable, try another port, and restart the Bridge service.

Browser issues? Disable extensions that block localhost, or test a different browser temporarily.

Still stuck? Reinstall Bridge and share logs with official support — never share your seed phrase.

Tips & best practices

Verify prompts — always confirm addresses and amounts on the Trezor screen before signing.
Official downloads — avoid third-party installers or links from unknown sources.
Limit exposure — stop the Bridge service when it's not needed for extra assurance.
Keep software clean — maintain OS updates and avoid risky apps that could compromise the host.

FAQ