Trezor Bridge — Secure & Smooth Crypto Access

A minimal local connector that lets Trezor devices talk to desktop and browser apps securely.
Local-first connectivity • Keep keys on-device • Official resources below

What is Trezor Bridge?

Trezor Bridge is a lightweight, trusted utility that runs on your computer to facilitate communication between Trezor hardware wallets and desktop or browser-based applications. It exposes a local endpoint on the loopback interface so web apps (or desktop wallets) can detect and communicate with your device without exposing USB or HID interfaces directly to the internet. Bridge's role is intentionally small: it passes requests to the device and returns responses — private keys and signing remain on the hardware.

Download Trezor Bridge Support & Docs

Why Bridge matters

Modern browsers and operating systems restrict direct raw USB access for security reasons. Bridge provides a controlled, auditable pathway that preserves safety while enabling broad compatibility across browsers and platforms. Without Bridge, many users would face complex driver installation or incompatible environments. With Bridge, the Trezor ecosystem offers a consistent and secure user experience across Windows, macOS, and Linux.

Design goals & security model

Bridge follows three core goals: security, compatibility, and simplicity. It only listens on localhost, never transmits your seed or private keys, and requests user consent for device operations. All critical signing happens on the Trezor hardware and requires physical confirmation on the device. Bridge simply acts as a messenger with a small trust footprint.

How to install and use Bridge

  1. Open the official Bridge download page: trezor.io/bridge.
  2. Choose the installer for your operating system and run it. On first run, Bridge starts a local service bound to 127.0.0.1.
  3. Connect your Trezor device with the supplied USB cable and open Trezor Suite or a compatible web app.
  4. Authorize the connection on the Trezor device when prompted; never approve a prompt you didn’t initiate.

Platform notes

On some systems Bridge may require elevated permissions during installation. It is designed to run unobtrusively in the background and only accept local requests. If you prefer not to run Bridge, some native desktop builds or other connectivity options may provide alternative paths.

Security & privacy considerations

Bridge is intentionally minimal and does not collect your seed phrase, private keys, or transaction content beyond what is necessary to forward requests. Nevertheless, treat any local service like software: install only from official sources, keep it updated, and avoid running untrusted applications that request device access.

Best practices

  • Always download Bridge from the official Trezor site or official Suite links.
  • Keep Bridge and Trezor firmware up to date — updates include security fixes and compatibility improvements.
  • Authorize device connections deliberately and verify the requesting domain in your browser.
  • Use a dedicated browser profile for crypto interactions to reduce extension-related risks.

Troubleshooting common issues

Occasionally users see Bridge not detected, device not recognized, or browser prompts failing. These are typically solvable with simple steps.

Quick troubleshooting checklist

  • Restart Bridge: quit the Bridge process and relaunch it from the system tray or applications folder.
  • Try a different USB cable or port — faulty cables are a frequent cause of problems.
  • Ensure your browser is updated and supports required APIs; try a different browser if necessary.
  • Check firewall or antivirus settings — some security tools may block local loopback services. Allow Bridge if prompted.

Advanced usage and developer integration

Developers can integrate with Bridge using the published communication protocols and follow recommended security flows — always prompting users and verifying actions. Trezor provides SDKs, example integrations, and developer documentation to make sure third-party apps handle signing flows correctly and safely.

Air-gapped and advanced workflows

Advanced users may combine Bridge with PSBT workflows for air-gapped signing or custom local node integrations for privacy. Each advanced choice increases complexity; document your procedures and keep secure backups of any necessary configuration.

Official resources & 10 links to bookmark

Use these official links for downloads, documentation, support, and developer resources:

Trezor Bridge — Download Getting Started / Trezor Suite Support & Troubleshooting Firmware & Security User Guides Compatibility GitHub — Trezor Trezor Blog Legal & Security Notices Official Shop

Final recommendations

Trezor Bridge is a small but essential component for a smooth and secure experience with Trezor hardware wallets. It preserves the security boundary by keeping private keys on-device while enabling modern web and desktop interactions. Install Bridge from official sources, keep both Bridge and your device firmware current, and always verify who is asking to interact with your device. When in doubt, consult the official support resources linked above.

Prepared as a landing-style guide for Trezor Bridge — installation, security, troubleshooting, and official resources for safe connectivity.