Trezor Bridge — Secure Connection for Your Trezor

What is Trezor Bridge?

Trezor Bridge is a small background application that enables secure communication between your Trezor hardware wallet and desktop software such as Trezor Suite or compatible browser interfaces. Bridge exposes a local, encrypted channel so the Suite can discover, query, and send commands to a connected Trezor device while keeping private keys locked inside the hardware.

Why Bridge Matters

Bridge ensures compatibility across operating systems and browsers, encrypted channels, and stable transport for the Suite and web apps. Private keys never leave the device, ensuring maximum security.

Installing Trezor Bridge

Visit trezor.io/start.
Download the installer for your OS.
Run the installer and grant permissions.
Restart your browser or Suite if needed.
Connect your Trezor and confirm detection in Suite.

Security Model & Privacy

Local only — Bridge runs on your machine.
No key storage — private keys remain on-device.
Minimal attack surface — small, audited software.

Daily Use

Device discovery and account sync.
Transaction signing with on-device confirmation.
Firmware updates initiated securely.

Troubleshooting

Confirm Bridge is running.
Try different USB ports/cables.
Restart Suite or browser.
Reinstall latest Bridge if needed.

Updating & Maintenance

Keep Bridge updated from the official site.
Check release notes and verify updates.

Developer Notes

Use supported libraries and ensure signing happens on-device. Never request private keys or seeds.

Summary & Recommendations

Install from official source only.
Keep host secure.
Confirm transactions on the device.