The essential gateway enabling your Trezor hardware wallet to communicate safely with desktop and web apps. Built for privacy, transparency, and seamless usability.
Trezor Bridge acts as the secure communication layer between your Trezor hardware device and your computer. Unlike traditional browser plugins or wallet connectors, Bridge ensures that every request to and from your wallet is authenticated, encrypted, and validated. Designed by SatoshiLabs, it’s the backbone that makes managing crypto with Trezor Suite and other interfaces safe and reliable.
This page explains everything about Trezor Bridge — what it does, how it protects your assets, and how you can set it up correctly for your system. By the end, you’ll understand why Bridge remains one of the most trusted solutions for secure crypto access.
Bridge uses encrypted local communication channels to ensure that no other app or browser component can intercept sensitive data. It never stores private keys or personal information — it simply relays commands securely between your Trezor device and authorized interfaces.
Available for Windows, macOS, and Linux, Trezor Bridge provides a consistent experience across all major operating systems. Once installed, your device is ready to interact with Trezor Suite, web wallets, or third-party tools that integrate Bridge APIs.
Whether you’re using the Trezor Model One or Model T, Bridge ensures secure connectivity without requiring browser extensions. It evolves with each OS update, supporting both modern browsers and privacy-focused alternatives.
When you connect your hardware wallet, Trezor Bridge establishes a direct communication tunnel between your device and trusted apps like Trezor Suite.
The Bridge software listens on a local port (usually http://127.0.0.1:21325) and responds only to verified HTTPS requests.
These communications are protected by strict protocol handshakes and message signing.
This design means your private keys never leave your hardware wallet. Even if malicious software runs on your computer, it cannot fake a confirmation without your device physically approving it. Every transaction must be reviewed and confirmed manually on the Trezor screen.
The Bridge detects when your Trezor is plugged in and verifies the firmware authenticity before allowing data exchange.
Apps like Trezor Suite send transaction or account requests to Bridge, which passes them securely to the device for signing.
The user physically verifies all details on the Trezor display — destination address, amount, and fees — before confirming.
Bridge returns the signed transaction to the requesting app. The signed message can then be broadcast safely to the blockchain.
Trezor Bridge installation is straightforward. Download the latest package directly from trezor.io/start and follow on-screen instructions. The installer automatically configures background services to start with your operating system.
Run the .exe installer as administrator. Once installed, Bridge launches automatically and remains active in the background. You can verify its status in your system tray or by checking the running services list.
Download the .dmg file, drag the Bridge icon to Applications, and allow it to run via System Preferences → Security if prompted. It runs silently and updates automatically when new versions are available.
Use the .deb or .rpm installer depending on your distribution. You can start Bridge manually with the trezord command
or enable it as a system service for persistent operation.
Common issues with Bridge are typically related to outdated software, missing permissions, or other wallet applications using the same port. Always ensure that you have only one Bridge instance running, and that no VPN or firewall is blocking local communication.
You can verify the Bridge status by visiting http://127.0.0.1:21325/status/ in your browser.
A JSON response confirms whether it’s active and listening for requests.
If issues persist, reinstalling Bridge from the official Trezor page usually resolves them.
Trezor Bridge is fully open-source and audited by the global security community. It doesn’t collect telemetry or user data. All updates are cryptographically signed by SatoshiLabs to prevent tampering. Combined with your Trezor hardware wallet, it forms a two-layer shield protecting you from online threats and phishing attempts.
Because it runs locally, Bridge also allows you to operate entirely offline or through private networks, enabling true cold-wallet management and custom workflows for power users and developers alike.