Trezor Bridge

Secure · Transparent · Simple

Trezor Bridge — the trusted link between your browser and your hardware wallet

Trezor Bridge makes connecting your Trezor device fast and effortless while preserving the integrity of your private keys. It acts as a lightweight, secure communication layer that enables desktop and web apps to talk to your hardware wallet without exposing sensitive information.

Endpoint isolation

Bridge isolates communications so web apps can’t directly access your device. Commands are routed securely.

Cross-platform

Native builds for Windows, macOS and Linux — installs in minutes and updates unobtrusively.

Compatibility

Works with all major wallets that support Trezor, including web-based wallets and desktop clients.

Why you need it

Browsers do not allow direct, stable access to USB hardware for security reasons. Trezor Bridge provides a secure and developer-friendly interface so you can manage funds, sign transactions, and interact with dApps without sacrificing safety.

Who it's for

From power users who interact with multiple blockchains to newcomers installing their first hardware wallet — Bridge is designed to be dependable and invisible once configured.

Key benefits

Local-only communication — Bridge runs on your machine; it never transmits keys off your device.
Automatic device discovery — Plug in your Trezor and the bridge detects it instantly.
Secure updates — Signed releases and checksum verification ensure authenticity.

Frequently asked questions

Is Trezor Bridge safe?: Yes. Bridge is designed as a minimal, local gateway. It never stores or transmits private keys; those stay inside your Trezor device. The software focuses on secure transport and handshake protocols only.
Do I need Bridge to use my Trezor?: On desktop and for many web wallets, yes — Bridge provides the communication channel they expect. Some wallets also support WebUSB or native integrations that may not require Bridge, but Bridge is the most compatible option.
What platforms are supported?: Windows (10+), macOS (Catalina and newer), and modern Linux distributions (AppImage or native packages). System-specific notes are available in the download section.
How do updates work?: Bridge checks for signed updates and prompts you. You can control automatic updates or perform manual installations if you prefer full control.

Get Trezor Bridge

Download the official Bridge package for your platform. Each installer is digitally signed — verify checksums where available.

Download for Windows Download for macOS Download for Linux

Not sure which to choose? Choose the package that matches your operating system and CPU architecture.

Quick setup

Download the right installer.
Run the installer and accept system prompts.
Plug in your Trezor and open your preferred wallet.
Approve connection on the device when prompted.

Troubleshooting

If your device isn't detected: try a different USB cable, ensure Bridge is running (look for a small tray/menu icon), and check that no other wallet apps are monopolizing the device. Restarting your browser or computer often resolves lingering USB issues.

Secure by design — how Bridge protects your keys

Trezor's security model places the cryptographic secrets inside the hardware device, isolated from your host computer and the internet. Bridge does not change that fundamental property. Instead, it provides a verified channel to make requests — such as "get public key" or "sign transaction" — while requiring physical confirmation on your device for all sensitive operations.

What Bridge does — and does not — do

DO: Translate secure API calls between your browser/desktop wallet and the Trezor device.
DO: Keep communications local and minimize background permissions.
DO NOT: Store, export, or transmit private keys from your device.
DO NOT: Replace the Trezor firmware — firmware updates run on the device and require direct confirmation.

Advanced users

Developers and advanced users can use Bridge for integration and automation with supported APIs. Bridge exposes a straightforward local API that simplifies secure signing flows in custom applications. Always follow best practices: verify software signatures, keep your OS up to date, and never enter your seed phrase into a computer.