Trezor Bridge — Secure Device Communication

Bridge the gap between your browser and Trezor hardware wallet with a private, authenticated, and reliable communication layer.
Privacy-first
Device pairing that keeps keys offline.
Cross-platform
Windows, macOS, Linux support.
Trusted connection
Signed messages and authenticated sessions.

What is Trezor Bridge and how it secures device communication

Trezor Bridge is a lightweight, local application that establishes a secure, authenticated channel between your computer’s browser and your Trezor hardware wallet. By acting as a focused communication layer, Trezor Bridge protects the user from direct low-level USB complexities, reduces attack surface, and ensures messages to the hardware wallet are never altered en route.

Core features of Trezor Bridge — Secure Device Communication

The architecture behind Trezor Bridge centers on three pillars: authentication, privacy, and robustness. Authentication ensures the browser talks only to a verified device; privacy keeps sensitive transaction data within a controlled local boundary; robustness reduces compatibility problems by handling browser-specific USB quirks.

When you install Trezor Bridge, your system obtains a trusted helper that listens on a local interface and forwards signed requests to your Trezor. The keyword here is secure device communication — every request for signing or device configuration is validated, and every response is cryptographically tied to the hardware wallet.

Example: Web app requests the device → Bridge authenticates → Trezor prompts user → User confirms on device → Bridge returns signed result.

Design benefits for everyday users and developers

For end-users, Trezor Bridge simplifies onboarding: no browser extension, no complex permissions — just a small, trusted bridge that runs locally. Developers benefit from a stable API surface and consistent device discovery across operating systems, letting apps focus on UX and security logic.

Installation & safety checklist

Download and quick start

Visit the official download page and follow platform-specific instructions. After installation, the Trezor Bridge service runs locally and will appear as an available transport for supported web wallets and apps. Always confirm that HTTPS is used and that the site you interact with is official or trusted.

FAQ — Quick questions about Trezor Bridge — Secure Device Communication

Is Trezor Bridge required? Many web applications can talk to Trezor via WebUSB, but Bridge improves compatibility and is recommended for broader browser support.

Does Bridge touch my private keys? No. Trezor Bridge only relays messages; private keys remain isolated on the hardware wallet and never leave the device.

How do I trust an installer? Always download from the official domain and validate checksums/signatures where available. Be wary of mirror sites that do not provide verification data.