What is Trezor Bridge?
Trezor Bridge is a lightweight software layer that securely connects your Trezor hardware wallet to desktop and web applications. It acts as a local communication gateway, allowing your browser or wallet app to interact with your device without exposing private keys.
Modern browsers restrict direct USB access for security reasons. Trezor Bridge solves this by creating a trusted local endpoint that apps can talk to using HTTP-like requests. This ensures compatibility across Windows, macOS, and Linux.
Key Features
- 🔐 Secure local communication — no private keys leave the device
- 🖥️ Cross-platform installers for Windows, macOS, and Linux
- ⚙️ Lightweight footprint with minimal resource usage
- 🔄 Auto-updates and verified firmware integration
- 🧠 Open-source components for transparency and auditability
How It Works
Trezor Bridge runs as a background service on your computer. It listens on localhost and exposes a limited API that trusted apps can use to communicate with your Trezor device. All sensitive operations — like signing transactions — require physical confirmation on the device screen.
Installation & Setup
- Download the Bridge installer from trezor.io/bridge
- Run the installer and follow OS prompts
- Connect your Trezor device via USB
- Open Trezor Suite or a compatible wallet app
- Confirm device detection and approve permissions
Troubleshooting Tips
- Restart the Bridge service if your device isn’t detected
- Reinstall the latest Bridge version if errors persist
- Check antivirus or firewall settings that may block USB access
- Always verify transaction details on the Trezor screen before approving
Simulated Bridge Connection