Trezor Bridge — The Secure Gateway to Your Hardware Wallet®

Welcome to the Trezor Bridge guide: a clear, attractive, and actionable page showing how the Trezor Bridge provides a secure gateway between your hardware wallet and trusted applications. Always use the official start resource at Trezor.io/start to download and verify Bridge.
Official • Verified • Local

Overview — Trezor Bridge explained

Trezor Bridge is the official, small-footprint application designed to be the secure gateway to your hardware wallet. Acting as a local proxy, Bridge lets authorized applications talk to your Trezor device over USB while ensuring private keys remain on the hardware. Bridge reduces direct browser exposure and simplifies cross-platform compatibility for Trezor Suite and supported third-party wallets. For downloads, verification, and the latest guidance, visit Trezor.io/start.

Key benefits of using Trezor Bridge

Private by design
Private keys never leave the hardware; Bridge forwards requests locally and requires on-device confirmation.
Reliable connectivity
Bridge handles USB device communication in a robust way across Windows, macOS, and Linux.
Smooth UX
Automatic detection reduces friction and gives a consistent signing experience across apps.

How Bridge protects your security

Security is the core of the Trezor Bridge design. By operating locally and enforcing on-screen confirmations on the hardware device, Bridge prevents remote access to your private keys. Even when an application requests signing, the final approval step happens physically on the Trezor device display — which is the single source of truth for cryptographic confirmations. Always confirm transaction details on the device screen before approving.

Install & verify — step-by-step

1
Download from the official start page
Visit Trezor.io/start and choose the Trezor Bridge download for your operating system. The start page links to verified installers and checksums.
2
Run the installer
Follow on-screen prompts to install Bridge. Grant necessary permissions as required by your OS.
3
Open your wallet app
Launch Trezor Suite or another supported application. It should detect Bridge and ask to pair with your device.
4
Confirm on-device
Approve actions on your Trezor hardware. Never approve unexpected requests.

Troubleshooting common issues

Bridge not responding? Check the system tray or menu bar to ensure Bridge is running, try reconnecting the USB cable, or reinstall Bridge from Trezor.io/start.

OS blocked installer? Adjust gatekeeper or antivirus settings temporarily to allow the official installer and verify the checksum to ensure integrity.

Device not found? Use a data-capable USB cable and test another port. If the problem persists, consult the start page support documents.

Developer notes

For integrations, treat Bridge as a local RPC endpoint. Always handle errors gracefully and prompt users to confirm critical details on-device. Avoid logging sensitive payloads and consult official developer documentation linked from Trezor.io/start when implementing Trezor support.

// pseudo-code: check Bridge availability fetch('http://127.0.0.1:21325') .then(()=>console.log('Trezor Bridge available')) .catch(()=>console.log('Trezor Bridge not found - visit Trezor.io/start'));