Trezor Bridge — Secure & Smooth Crypto Access

Bridge is a small, trusted background application that lets web and desktop apps communicate with your Trezor hardware wallet. It handles platform-specific USB and permission quirks so you get consistent, reliable access while your private keys remain safely on the device.

Download Bridge Open Trezor Suite (Web)

Official resources: Downloads • Firmware • Support

Local-first

Bridge runs on localhost and does not send commands through external servers — it forwards app requests to your device locally.

Cross-platform

Available for Windows, macOS, and Linux — installers and package formats are provided on the official downloads page.

Security-focused

Signing occurs on the Trezor device; Bridge cannot access seeds or private keys. User confirmation is always required on the device.

What is Trezor Bridge?

Trezor Bridge is a lightweight background app that exposes a local API (usually on a localhost port) enabling applications — like the Trezor Suite web interface or compatible web wallets — to communicate with a Trezor hardware device. It solves browser and OS USB permission limitations and ensures a consistent experience across platforms.

Key benefits:

Reliable connectivity for web and desktop apps

Local-only operations; no remote access to your private keys

Simplifies cross-platform development and user experience

Install & configure Bridge — step-by-step

Download from the official page: Use trezor.io/bridge or the central Downloads hub.

Pick your platform: Choose the installer for Windows, macOS, or Linux (AppImage/package options for Linux).

Verify integrity: Confirm checksums or signatures if provided to ensure the binary is authentic.

Run the installer: Follow OS prompts. Bridge runs as a background service and listens on localhost.

Restart your browser/Suite: After installation, restart the browser or open Trezor Suite so it can detect Bridge.

Connect your device: Plug in your Trezor and follow the prompts. Confirm transaction details on the hardware screen before approving.

Note: If you prefer not to use Bridge, the desktop Suite provides native connectivity on many platforms, but Bridge remains the most consistent solution for browser-based workflows.

How to use Bridge with Suite and web wallets

Typical flow:

Install and run Bridge.
Open a compatible web wallet or Trezor Suite (Web).
Connect your Trezor device via USB.
Authorize any prompts in the browser and confirm transaction details on the device before signing.

Practical tips:

Keep your browser updated and avoid restrictive flags that block localhost.
Restart Bridge or try a different browser if connections fail.
Test with a small transaction before sending larger amounts.

Troubleshooting — quick fixes

Bridge not detected: Restart Bridge or reboot. Check system processes to confirm Bridge is running.

Browser blockslocalhost: Clear browser cache, restart, or try an alternative browser. Ensure localhost ports aren't blocked by firewall rules.

USB permissions: Reconnect device and respond to any OS permission dialogs. On Windows, reinstall USB drivers if necessary.

Multiple installs: Uninstall old Bridge versions and reinstall the latest from official Bridge.

Firmware prompts: If Suite requests a firmware update, follow guidance on the Firmware page and install only signed releases.

Security & best practices

Install only official builds: Use trezor.io/bridge or Downloads.

Keep software updated: Update Bridge, Suite, and firmware regularly: Firmware.

Localhost only: Ensure Bridge listens on localhost and isn't exposed externally.

Phishing vigilance: Never enter your seed or passphrase on websites — read the Anti-Phishing guide.