What is Trezor Bridge? 🔍

Trezor Bridge is the lightweight, secure communication layer that sits between your Trezor hardware wallet and your browser or desktop apps. It enables reliable USB connectivity while keeping your private keys isolated on the device. Designed by the Trezor team, Bridge provides a minimal attack surface and a dependable handshake that modern wallets rely on for signing transactions, managing accounts, and confirming operations on-device.

Security-first design 🔒

All operations that matter—private key use, signing, and recovery—happen on the Trezor device. Bridge only relays encrypted, authenticated requests. It never has access to seeds or private keys and operates with the principle of least privilege.

Cross-platform compatibility 💻

Trezor Bridge runs on Windows, macOS and Linux. It supports multiple browsers and is continuously updated to remain compatible with the latest browser APIs and OS changes.

Fast, reliable connections ⚡

Bridge keeps USB sessions stable even across temporary disconnects, and provides clear error messaging so you know when action is required on the device. The result: fewer failed transactions and less user friction.

Privacy-focused 🕵️‍♂️

Bridge does not collect telemetry about your transactions. Network requests and signing paths remain private to you and the services you choose to use with your Trezor device.

🔐 Hardware-backed • On-device signing

How it works — a quick overview 🧩

When you connect your Trezor device, the Bridge software establishes a verified communication channel. The host application asks the device to perform an action (for example, show an address or sign a transaction). The device displays the summary, you verify on-screen, and then approve the action on the physical hardware. Bridge merely forwards the signed result back to the application — it never holds or caches private data needed to reconstruct keys.

From a security perspective, this separation of duties means your seed remains offline and under your control. Even if the host computer is compromised, an attacker cannot extract your private keys through Bridge alone — they would still need physical access to the device to approve sensitive operations.

Best practices when using Trezor Bridge ✅