Trezor Bridge — Secure & Smooth Crypto Access™

A compact, secure connector between your Trezor hardware and apps — designed for robust security and seamless UX.

Overview

Trezor Bridge historically served as the lightweight desktop helper that enabled browsers and the official Trezor Suite to communicate securely with your Trezor hardware wallet. It acted as a local bridge, handling USB transport and handshakes so that wallet apps never need direct low-level access to your device.

Why a bridge exists

Modern browsers limit direct USB access for security reasons. Bridge software runs locally to provide a safe, vetted channel that forwards encrypted messages between the page and the hardware device — protecting the device from malicious web pages while preserving usability.

Current status & migration

Note: The Trezor team has evolved the stack and self-hosted standalone Bridge installations have been deprecated in favor of tighter integration with Trezor Suite and newer transports. If you still have standalone Bridge installed, follow the official uninstall/migration guidance and move to the supported Trezor Suite workflow for the smoothest, most secure experience.

Security-first design

The Bridge architecture was designed so that all cryptographic operations and confirmations happen on-device. The bridge only transports messages; your seed, PIN, and approvals remain on the Trezor hardware itself.

Best practices (quick)

  • Use the Trezor Suite official app whenever possible for automatic, secure updates.
  • Uninstall deprecated standalone Bridge versions when instructed by support guides.
  • Verify software signatures for any downloaded Bridge installers or payloads.
  • Keep firmware and Suite up to date; never share your recovery seed.

Troubleshooting snapshot

If a device isn’t detected: check USB cable/port, use the official Suite, verify firmware version compatibility, and follow the troubleshooting guides in support. System-level conflicts (old Bridge installs or driver issues) are a common root cause.

Implementation notes & developer hints

For developers

If you integrate with Trezor devices, rely on the official transport libraries and follow the published guidance in the Trezor developer docs. Ensure your app verifies the device and uses the approved endpoints. Test across supported OS releases and consider fallback transports recommended by the Trezor team.

Verification

Use published signing keys and PGP signatures to validate downloaded Bridge installers when available.