Educational Overview: Discover how Trezor Bridge enables secure browser-to-hardware communication.

Protocol Architecture Guide

Demystifying Trezor Bridge for Hardware Security

Learn how Trezor Bridge functions as a lightweight local background daemon, facilitating zero-leak communication between web browsers and physical hardware cryptocurrency wallets without external servers.

Explore Architecture

How WebUSB Compares

Runs locally on 127.0.0.1 • Zero remote private key exposure

Interactive Flow Simulator

Active Daemon

1. Web Interface (Browser Client)

Sends unsigned serialization request via HTTP localhost

2. Trezor Bridge (Local Daemon)

Translates commands into raw USB protocol packets

3. Hardware Device (Isolated Key Storage)

Cryptographic signature confirmed on physical screen

Localhost Isolation

Standard Local Port Target

Air-Gapped Architecture Principle