Trezor Bridge

A secure connector that lets your computer talk to your Trezor hardware wallet.

Securely connect your Trezor to web apps and desktop utilities

Trezor Bridge runs in the background and creates a secure channel between your hardware wallet and apps like Trezor Suite, exchanges, or browser-based wallets. It ensures compatibility and avoids unsafe web USB access.

Why Bridge matters

  • Encrypted communication
    All data stays local between your device and apps.
  • Cross-platform
    Works on Windows, macOS, and Linux.
  • Lightweight
    Small installer, minimal footprint.
  • Automatic updates
    Keeps security up to date without hassle.
Download Trezor Bridge
Available for Windows, macOS, and Linux. Installer includes a small helper service that enables secure USB communication.

What is Trezor Bridge? — A practical guide

Trezor Bridge is a small local software utility designed to act as a secure translator between your computer and your Trezor hardware wallet. While modern browsers provide USB access through the WebUSB API, various platforms and browser versions behave differently; Bridge provides a consistent, secure interface so hardware wallets can be used reliably across applications and environments.

At its core, Bridge handles device discovery, encrypted messaging, and authorization handshakes. When you connect your Trezor to a computer and open a supported app, Bridge creates a short-lived, encrypted channel that allows signed instructions and responses to travel safely between the app and your device. Importantly, sensitive keys never leave the Trezor — Bridge simply passes messages back and forth, acting as a gatekeeper and compatibility layer.

Security by design

Security is the top priority for both Trezor and Bridge. The bridge itself is intentionally minimal: it does not store or expose private keys, does not forward data to remote servers, and only listens for connections from apps running on the local machine. All critical decisions, such as approving transactions and revealing addresses, require explicit confirmation on the physical Trezor device.

Bridge also implements standard practices such as automatic update checks, digitally signed installers, and strict process isolation to prevent untrusted applications from spoofing a legitimate connection. If you ever suspect a compromised environment, remove Bridge, disconnect your device, and consult official Trezor support for the safest next steps.

Installing safely

Always download Trezor Bridge from the official Trezor website or through trusted links in the Trezor Suite. Avoid installing helper utilities from unverified third-party sites. After installation, the service runs in the background and will be visible in your operating system's process list. On first connection, your browser or app may ask for permission to use the bridge — grant only to software you trust.

Common use cases

Bridge enables a wide range of workflows: opening Trezor Suite on desktop, connecting to exchange integrations that support hardware wallets, signing messages in dApps, or using browser-based portfolio tools. For developers, Bridge simplifies integration testing and local development by offering a consistent RPC-style interface that abstracts away platform-specific USB quirks.

Troubleshooting

Most issues are simple to resolve. If your device is not detected, check your USB cable and port first — not all USB cables carry data. Rebooting your computer and re-plugging the Trezor often resolves transient issues. If Bridge still doesn’t see the device, reinstall the latest Bridge version, ensure your operating system is up-to-date, and that no other wallet software is claiming exclusive access to the USB device.

FAQ

Does Bridge access my private keys?

No. Private keys remain on the Trezor device. Bridge only relays encrypted messages between your apps and the device.

Is Bridge open source?

Bridge binaries and many components maintained by the Trezor team are published and verifiable. Check the official Trezor repositories for source code and build instructions.

What platforms are supported?

Windows (including 64-bit installers), macOS (Intel and Apple Silicon), and popular Linux distributions.

Can I use Bridge on a headless server?

Bridge is intended for desktop environments. Headless usage may be possible but typically requires manual setup and is recommended only for advanced users.

Developer notes

Developers looking to integrate Trezor support should consult the official developer documentation. Bridge exposes a local HTTP/HTTPS endpoint and a small JSON-RPC-like protocol to enumerate devices and send APDU-style commands. The recommended approach is to use the libraries and SDKs maintained by the ecosystem, which will manage message formatting, error handling, and device discovery on your behalf.

Final thoughts

For most users, Trezor Bridge is a quiet, trustworthy helper: once installed, it simply makes working with a hardware wallet smoother and more predictable across apps. It preserves the principal advantage of hardware wallets — keeping private keys offline — while making the user experience practical for everyday use. Whether you’re securing a small stash or managing a large portfolio, Bridge reduces friction without compromising the strongest security guarantees.

This page is a template and informational demo. Always verify downloads and instructions against the official Trezor website before installing any software related to your crypto assets.