Trezor Bridge — Connect and Secure Your Crypto Wallet

Trezor Bridge ensures your hardware wallet communicates safely with desktop and web apps. This 2025 guide covers setup, features, security tips, troubleshooting, and developer insights.

Secure HelperUpdated 2025Reading time: ~10 min

Understanding Trezor Bridge

Trezor Bridge is a local software application that facilitates secure communication between your Trezor device and browser or desktop apps. Unlike raw USB access, Bridge provides a consistent interface across OS and browser environments while keeping private keys offline.

Why you need Bridge

Direct USB access in browsers is limited and inconsistent. Trezor Bridge solves this by running a trusted local process, forwarding commands from wallet apps to the Trezor device, and ensuring cryptographic operations always occur on the hardware.

Core Features

Cross-platform support: Windows, macOS, Linux
Automatic device detection and reconnection
Local-only process: keys stay on-device
Low memory footprint and lightweight background operation
Developer-friendly API with extensive docs
Secure signed releases with checksums

Installing Trezor Bridge

  1. Windows: Run the installer and approve driver prompts.
  2. macOS: Open System Preferences → Security & Privacy if blocked.
  3. Linux: Use provided packages; adjust udev rules if needed.

Security Best Practices

  • Always download from Trezor.io/start.
  • Keep OS and browser updated.
  • Verify device prompts before approving transactions.
  • Limit trusted applications accessing the wallet.

Troubleshooting Tips

  1. Device not detected? Reconnect and ensure Bridge is running.
  2. Browser issue? Restart browser and clear site data.
  3. Installer blocked? Adjust OS security settings.

Advanced Uses

Combine Bridge with air-gapped workflows for enhanced security. Unsigned transactions can be generated offline and signed using Bridge-enabled sessions for convenience without compromising safety.

Advantages
  • Reliable cross-platform communication.
  • Keys remain on hardware at all times.
  • Improves wallet app stability.
Considerations
  • Requires installation per device.
  • Minor additional local software layer.
  • Occasionally needs updates with OS changes.

FAQ

Is Trezor Bridge necessary?
For browser-based wallets and consistent cross-platform support, yes. Trezor Suite may bypass it in some environments.
Can it run on Linux?
Yes, with proper permissions or udev rules for USB access.
Is my crypto safe?
Yes — private keys remain on the device. Bridge only facilitates secure communication.