Trezor Bridge — The Secure Gateway to Your Hardware Wallet®

Trezor Bridge is the lightweight, secure piece of software that connects your Trezor hardware wallet to applications running in your desktop browser. It acts as a trusted messenger between local hardware and web-based wallet interfaces, enabling safe transaction signing, address verification, and device management without exposing your private keys to the internet.

This page explains Trezor Bridge in simple terms — what it does, how it protects you, who should use it, and practical steps to install and verify it securely. The goal is to make the technical feel approachable so you can use your hardware wallet confidently.

Web browsers deliberately restrict direct access to USB hardware to prevent malicious web pages from interacting with devices. Trezor Bridge fills that gap by running locally on your computer and exposing a secure, authorized channel only to legitimate Trezor user interfaces. In short:

• Bridges the gap between browser and hardware over a controlled local channel.
• Limits exposure so the hardware’s private keys never leave the device.
• Simplifies compatibility across browsers and operating systems with a standard, supported API.

Trezor Bridge is designed with a security-first mindset. It follows several core principles:

• Local-only communication: All communication happens over a local loopback interface; Bridge does not send your keys or signing requests over the internet.
• User confirmation: Any action that requests a signature or reveals an address requires you to confirm it directly on your Trezor device’s screen.
• Minimal attack surface: Bridge runs a small, auditable codebase with strict permission models and no background cloud syncing.
• Open-source roots: Core Trezor software is transparent and regularly audited; Bridge complements this model with reproducible builds and clear update paths.

If you own a Trezor hardware wallet and you want to manage cryptocurrencies through a browser-based dashboard, you’ll need Trezor Bridge. It’s ideal for:

• Users who prefer the convenience of web wallets but want hardware-level key protection.
• Advanced users who run multiple browser extensions or wallets and need a reliable local connector.
• Developers building secure dApps that require reliable hardware signing support during local testing.

Installing Trezor Bridge is quick and straightforward. Follow these safe steps:

1. Download Bridge only from the official Trezor website. Avoid third-party downloads.
2. Install using the native installer for your OS (Windows, macOS, Linux). The installer registers the local service that's used by web apps.
3. Open your web wallet (e.g., Suite or compatible web UI) and follow the prompts to connect your device. Always verify the request on the hardware screen.
4. Confirm the Bridge version in your wallet’s settings. If an update is available, apply it from the official source.

Tip: After installation, your browser will prompt for permission when a web wallet tries to talk to Bridge. Only accept connections from sites you trust.

Trezor Bridge is built to work with most modern desktop browsers and operating systems. It provides a consistent local API so web wallets can rely on predictable behavior across environments. For mobile devices, Trezor has alternative connection options like WebUSB or native companion apps depending on the model.

• Always confirm on the device: Never approve transactions without verifying details on your Trezor screen.
• Keep software updated: Regularly update Bridge, Suite, and your device firmware from official channels.
• Use a secure computer: Avoid using Trezor on public or compromised machines.
• Back up recovery seed: Securely store your recovery seed offline; Bridge cannot recover your keys if the seed is lost.

Below is a safe, non-sensitive sample public key displayed to demonstrate an interactive "working key" element on a product page. This is not a real private key and cannot be used to control funds — it’s only to show how a copy-to-clipboard feature can be implemented for user convenience.

Click the button to copy this sample public key to your clipboard.

Q: Is Bridge safe to run on my machine?
A: Yes — Bridge is designed to keep private keys on the hardware. Make sure to install only official releases and keep your device interactions in view so you verify every action.

Q: Can Bridge access my funds?
A: No. Bridge facilitates communication only. Funds are controlled by the private keys on the Trezor device, which never leave it.

Q: What if I lose my recovery seed?
A: If you lose your recovery seed, you risk losing access to your funds. Bridge is not a backup service — your recovery seed is the only way to restore keys to a new device.

Trezor Bridge is a small but essential piece of the hardware wallet ecosystem. Its role is simple: securely connect your browser to your device so you can manage crypto without exposing sensitive material online. By following installation best practices and confirming actions directly on your hardware, you get the convenience of web interfaces and the security of air-gapped key management.

For the best security, always use official releases, verify transactions on the Trezor screen, and safeguard your recovery seed offline.