Trezor Bridge* — Secure & Safe Desktop Hardware™ Wallet

Download Trezor Bridge* from official sources, keep it updated, and pair it with a Trezor hardware wallet to maximize protection for your digital assets. For developers, the Bridge documentation and sample integrations offer a fast path to secure hardware wallet compatibility. Explore the documentation, join the community, and adopt best practices to secure your crypto journey with confidence. today.

Introduction

Trezor Bridge is a local application that connects your Trezor hardware wallet with desktop apps or web interfaces. It acts as a secure intermediary ensuring that your private keys never leave the device, while enabling seamless communication across multiple platforms.

Why Trezor Bridge?

Cross-platform support for Windows, macOS, and Linux.
Provides fallback for browsers that do not support WebUSB.
Officially signed releases ensure integrity and security.
Runs silently in the background for consistent connectivity.

Tip: Always verify the checksum of the installer to ensure authenticity and prevent malicious software installation.

Installation Step-by-Step

Download Official Bridge: Go to trezor.io/start and select the installer for your OS.
Run Installer: Follow on-screen prompts. Administrator permissions may be required for Windows.
Start Bridge: After installation, it runs in the background automatically, listening on a secure local port.
Connect Trezor Device: Use a quality USB cable and open your preferred wallet interface.
Confirm Actions: All requests must be approved physically on your Trezor device.

Tip: Use direct motherboard USB ports instead of hubs to prevent connectivity issues.

Advanced Configuration & Developer Notes

Developers integrating Trezor Bridge should follow these best practices:

Use ephemeral sessions for sensitive operations.
Confirm all critical actions physically on the device.
Never store recovery seeds or sensitive keys on the host machine.
Adjust logging/debugging only if necessary for troubleshooting or custom integrations.

fetch('http://127.0.0.1:21325/info')
.then(r => r.json())
.then(info => console.log('Bridge status', info))
.catch(err => console.error('Bridge not running', err));

Troubleshooting

Bridge Not Detected

Verify the Bridge service is running in background processes.
Restart the service and wallet app.
Try another USB port or cable.

Firewall / Antivirus

Ensure local loopback access is allowed. Do not expose Bridge to public networks.

Tip: Collect logs when contacting support — never share recovery seeds.

Security Best Practices

Install only official releases from trezor.io/start.
Keep OS and Bridge updated.
Use PINs and recovery seed for your device security — Bridge only facilitates communication.
Restrict Bridge to local access; never forward ports externally.

FAQs

Do I always need Trezor Bridge?

Modern browsers may use WebUSB directly, but Bridge ensures wider compatibility and fallback support.

Is Trezor Bridge safe?

Yes, official signed releases are verified and run locally without exposing private keys.

How to uninstall Bridge?

Use your OS uninstall process and restart the computer to remove any lingering background service.

Quick Access

Download the official Trezor Bridge for your operating system and get started immediately.