Trezor Bridge is a lightweight, secure connection application that enables your Trezor hardware wallet to communicate with web apps and desktop wallets. It runs locally, minimizes browser compatibility issues, and keeps private keys isolated on your device. This page describes the Bridge, key features, download options, installation notes, compatibility, and best practices for safe use.
Bridge provides consistent USB communication, automatic device discovery, and streamlined firmware handling. It works across major operating systems and browsers and is built to respect user privacy — no telemetry, no cloud relays. Designed for both power users and first-time owners, Bridge simplifies device connections while keeping security the top priority.
When installed, Trezor Bridge runs as a small local daemon that mediates messages between the browser and the Trezor device over USB. Web apps connect to the local Bridge HTTP endpoint; Bridge validates requests and forwards them to the device. All sensitive signing actions require confirmation on the Trezor hardware device itself, ensuring private keys never leave the device.
Bridge focuses on minimal attack surface and transparent behavior. It does not store private keys or user secrets. For defensive measures, always verify the firmware version on your device, only download Bridge from the official site, and confirm transactions on your hardware display.
Supported platforms include Windows (10+), macOS (Big Sur+), and modern Linux distributions. Supported browsers are Chromium-based browsers and Firefox. Older browsers may require additional configuration. Check the download panel for the latest OS-specific packages and installation notes.