What is Trezor Bridge?
Trezor Bridge is the official desktop communication software developed by SatoshiLabs that creates a secure local channel between your Trezor hardware wallet and supported browsers. It enables Trezor Suite and compatible web apps to detect the device, request signatures, and send transactions while ensuring private keys never leave the hardware wallet.
The Bridge runs locally, handles permissions, and maintains a stable connection across Windows, macOS, and Linux. It is recommended for all desktop users who manage crypto with Trezor devices.
Step-by-step: Install & Start with Trezor Bridge
Follow these steps carefully to install Trezor Bridge and ensure a safe, working setup.
- Verify your device — inspect tamper-evident seals and packaging. Only proceed with an untampered device purchased from an authorized seller.
- Download Bridge — visit the official Trezor website and download the Bridge installer for your operating system (Windows, macOS, or Linux). Avoid third-party downloads to prevent counterfeit installers.
- Run the installer — run the downloaded package and follow prompts. Administrative privileges may be required; this is normal for background services.
- Connect your Trezor — plug the device into your computer using the provided USB cable. Bridge should detect the device automatically and expose it to supported apps.
- Open Trezor Suite or a supported web app — the app will prompt you to initialize or unlock your device. Complete PIN and seed setup directly on the hardware.
- Confirm transactions on-device — every transaction must be verified physically on your Trezor screen, preventing remote compromise.
- Keep Bridge updated — allow auto-updates or check trezor.io periodically to ensure compatibility and security updates are applied.
Key Features
- Secure desktop-to-device link — keeps private keys inside the hardware wallet at all times.
- Cross-platform — supports Windows, macOS, and major Linux distributions.
- Automatic updates — keeps compatibility and security current without manual hassle.
- Lightweight — minimal system impact while running in the background.
- Browser compatibility — works with Chrome, Edge, Firefox and other common browsers.
- Seamless integration — works with Trezor Suite and third-party wallet UIs for signing and management.
Benefits of Using Trezor Bridge
The primary benefit of Trezor Bridge is enhanced security: acting as a trusted local intermediary, it prevents web pages and extensions from directly accessing your hardware device. Your private keys never leave the Trezor unit, and every sensitive action must be confirmed on-device. Bridge also improves usability by making device discovery reliable and keeping connections stable across apps.
Other advantages include independence from web-only APIs, straightforward installation, and automatic updates that help protect against compatibility issues. For both beginners and advanced users, Bridge is an essential component that makes everyday crypto management safer and smoother.
How Bridge Works & Troubleshooting
Trezor Bridge runs a small local service exposing a secure endpoint for supported browsers. When an application needs to request a signature or show device data, it routes through Bridge rather than accessing the USB device directly. This consistent API reduces browser compatibility problems and centralizes updates.
If your browser does not detect the device, confirm the USB cable and port, restart the browser, and reconnect the device. Ensure you downloaded Bridge from trezor.io and have the latest version installed. On locked-down systems you may need to allow the Bridge helper service in firewall or security settings. For persistent issues, consult official Trezor support resources and community guides.
Privacy note: Bridge itself does not transmit private keys off your machine — your keys and recovery seed remain on the hardware device. Always store your recovery seed offline and never enter it into a computer.
Advanced Workflows & Organizational Use
Trezor Bridge also supports advanced workflows for power users, including integration with third-party DeFi tools, enabling coin control features, and managing multiple accounts from one device. Developers can build on documented Bridge APIs, and security researchers can audit the codebase thanks to its open-source approach. Organizations should document installation policies and user access controls to ensure consistent, auditable wallet usage across teams.
Always download Bridge from the official site to avoid counterfeit installers.
FAQ
Is Trezor Bridge free? — Yes. It is free to download and use on supported platforms.
Do I need Bridge to use Trezor Suite? — On desktop browsers Bridge is recommended for reliable communication; some native integrations may vary.
Which OS are supported? — Windows, macOS, and Linux distributions are supported.