Do I need Trezor Bridge to use my Trezor?

It depends: modern browsers with WebUSB may connect to Trezor devices without Bridge, but Bridge remains a cross-platform fallback and historically provides consistent connectivity for browsers and third-party wallets.

Is Trezor Bridge secure?

Yes — Bridge acts as a local relay and does not expose your seed or private keys. Device-confirmation and signing always happen on the Trezor hardware, not in the browser.

Where do I download Trezor Bridge?

Always download Bridge from the official Trezor start/download pages (trezor.io/start or trezor.io/trezor-suite) and verify installers as instructed by Trezor documentation.

Has Trezor Bridge changed recently?

Trezor has updated the Trezor Suite ecosystem and announced deprecation/removal phases for the standalone Bridge; follow official Trezor product updates for migration steps and timing.

Trezor Bridge — Secure Connectivity for Your Trezor Hardware Wallet

Q: What is Trezor Bridge?

Trezor Bridge is a local background application (middleware) that enables secure communication between Trezor hardware wallets and desktop browsers or apps, exposing USB/HID transports to clients while keeping private keys on the device.

What is Trezor Bridge?

Trezor Bridge is a small local application (middleware) that runs on your computer to expose USB and HID transports to supported browsers and desktop apps, allowing web-based wallet interfaces and native apps to communicate with your Trezor hardware wallet while ensuring that private keys and signing remain device-bound.

Core functionality

Device discovery: detects Trezor devices over USB/HID and maintains a local connection tunnel.
Transport relay: safely exposes the device to the browser/app without exposing secrets.
Cross-platform fallback: provides compatibility for browsers or OS combinations where WebUSB is unavailable or restricted.
Open-source alignment: part of the Trezor ecosystem and documented in Trezor guidance pages.

How it works (short)

When you plug a Trezor device into your PC, Bridge listens for it and provides a controlled API surface so web pages or the Trezor Suite desktop app can send commands, request addresses, and initiate signing. The actual cryptographic operations and confirmations remain on the Trezor device screen; Bridge only relays messages.

Important note

Trezor Suite and modern browsers support WebUSB; Trezor has announced phases where the standalone Bridge may be deprecated and users are advised to follow official guidance when migrating.

Related keywords (SEO & context)

Trezor Bridge, Trezor Suite, WebUSB, hardware wallet connection, USB bridge, SatoshiLabs, secure wallet transport, HID, cryptographic signing, firmware

Installation & Best Practices

Always download from the official Trezor pages: trezor.io/start or the Trezor Suite download page.
Verify the installer/checksums when provided in official docs.
If a browser supports WebUSB natively, you may not need Bridge — however Bridge remains useful for cross-platform consistency.
Uninstall old Bridge versions if Trezor docs instruct you to do so to avoid conflicts.

Security & privacy

Bridge acts as a relay on your local machine. It does not store or transmit seed phrases or private keys off-device. All signing requests require confirmation on the physical Trezor device, ensuring the hardware remains the single source of truth for signing operations.

Troubleshooting checklist

Ensure Bridge service is running (check OS service list or system tray).
Try another USB cable/port (data-capable cable required).
Use latest Trezor Suite / browser and update device firmware when needed.
If using web Trezor Suite, try toggling WebUSB vs Bridge according to official guidance.

Trezor Bridge — The Secure Middleware for Connecting Your Trezor Wallet