The essential communication protocol connecting your Trezor hardware wallet to your web browser. Experience seamless, secure, and private management of your digital assets.
Understanding the backbone of your hardware wallet's connectivity.
Trezor Bridge is a lightweight, background application designed to facilitate communication between your Trezor hardware wallet and your web browser. Before the advent of Trezor Bridge, users relied on browser plugins, which often faced compatibility issues and security limitations.
Acting as a local communication server, Trezor Bridge runs quietly in the background (listening on 127.0.0.1:21325), allowing web applications like Trezor Suite Web or third-party wallets (like MetaMask or MyEtherWallet) to detect and interact with your device securely. It eliminates the need for outdated browser extensions and provides a more robust, system-level integration.
Whether you are managing Bitcoin, Ethereum, or thousands of other supported cryptocurrencies, Trezor Bridge ensures that your private keys never leave your device while still allowing you to sign transactions conveniently through your browser interface.
Optimized data transmission for quicker wallet loading.
Isolated process that reduces attack vectors.
Runs in background, ready when you need it.
Why Trezor Bridge is the industry standard for hardware wallet communication.
Uses a proprietary communication protocol that ensures data integrity between the USB device and the browser, preventing man-in-the-middle attacks.
Fully compatible with major operating systems including Windows (10+), macOS (10.14+), and various Linux distributions (RPM/DEB).
Consumes minimal system resources. It runs as a background process (trezord) only when needed, ensuring your computer stays fast.
Works seamlessly with Chrome, Firefox, Brave, Edge, and other Chromium-based browsers without requiring specific extensions.
Provides a standardized API for developers building third-party wallet integrations, fostering a rich ecosystem of compatible apps.
Keeps itself updated to the latest version to ensure you always have the latest security patches and feature improvements.
Getting started with Trezor Bridge is simple. Follow these steps for your operating system.
trezor-bridge-latest.exe installer from the official website.trezor-bridge-latest.pkg installer file..deb or .rpm) for your distribution.sudo dpkg -i trezor-bridge.deb in terminal.sudo rpm -i trezor-bridge.rpm.trezord service should start automatically.While WebUSB is becoming more common, Trezor Bridge remains the gold standard for compatibility and reliability.
Some browsers (like Firefox) do not support WebUSB fully. Trezor Bridge ensures you can use your device on any major browser without limitations.
Browser updates can sometimes break WebUSB functionality. Trezor Bridge operates independently, providing a stable connection layer that isn't affected by browser updates.
By handling communication locally, Trezor Bridge minimizes the metadata exposed to the browser, offering a slightly more private interaction model compared to direct browser APIs.
Code is fully auditable on GitHub for maximum transparency.
Runs silently without interrupting your workflow.
Common issues and how to resolve them quickly.
Try using a different USB cable or port. Ensure no other applications (like other wallets) are polling the USB device. Restarting the Trezor Bridge service often helps.
Check your task manager (Windows) or Activity Monitor (macOS) for the trezord process. If it's not running, try reinstalling the bridge or starting it manually.
Clear your browser cache and cookies. Ensure you are not using incognito mode, as it sometimes restricts local communication. Disable conflicting extensions.
Answers to the most common questions about Trezor Bridge.