Trezor Bridge — Secure Connection for Your Trezor

Your trusted companion app that makes your Trezor device talk to browsers and desktop applications seamlessly — without ever compromising on safety.

Secure Gateway

Why Trezor Bridge Matters

Modern browsers restrict direct USB communication. Trezor Bridge ensures your device is detected and used securely by wallets and crypto apps, acting as the invisible connector that empowers your crypto journey.

What is Trezor Bridge?

Trezor Bridge is a lightweight software layer that creates a secure communication path between your hardware wallet and third-party crypto applications. It is the official connector for Trezor devices, ensuring compatibility, stability, and security across multiple platforms.

Core Features

  • Reliable USB/HID communication with hardware devices.
  • Local-only traffic via localhost.
  • Cross-platform support — Windows, macOS, Linux.
Bridge is like a postman: it delivers messages, but never opens the letters. The secrets remain sealed inside your Trezor.

Why You Need Trezor Bridge

Without Bridge, most browsers can’t interact directly with USB devices. Bridge ensures smooth communication, enabling secure transactions, app integrations, and wallet management across Web3 environments.

Advantages

  • Seamless connection between device and app.
  • No manual configuration required.
  • Lightweight and efficient software footprint.

Security Design

Trezor Bridge does not store or access your private keys. It only transfers requests and signed responses. All sensitive operations happen within your Trezor device, under your direct confirmation.

Key Safeguards

  • Every transaction must be verified on the hardware screen.
  • Bridge runs locally, not in the cloud.
  • Device and host environments remain separated.
Even if your PC is infected, Bridge ensures private keys never leave your device. Always verify details on the device display.

Developer Insights

Bridge is critical for developers building apps that require secure device communication. It provides a uniform API surface and reliable transport layer, so apps don’t need to reinvent the wheel.

Best Practices

  • Detect Bridge installation and guide users accordingly.
  • Implement explicit user consent for every request.
  • Offer fallback options where Bridge is unavailable.

Troubleshooting

Device Not Recognized?

  • Check your cable — use original or high-quality data cable.
  • Restart Bridge from system tray/task manager.
  • Reboot your browser after setup.

Other Issues

  • Remove old connectors that might conflict.
  • Allow Bridge through firewall/antivirus if blocked.
  • Keep firmware and OS updated.