What is Trezor Bridge?
Trezor Bridge is a lightweight, secure communication layer that connects your desktop or browser to a Trezor hardware wallet. It acts as a gateway that translates web requests into safe USB commands, preserving cryptographic integrity and preventing unauthorized access. Think of Trezor Bridge as the private messenger between your software and the physical device.
Why Trezor Bridge matters
Without a dedicated bridge, browsers might attempt to talk to a hardware wallet directly in ways that are slower, less predictable, or less secure. Trezor Bridge handles device discovery, robust handshake procedures, and encrypted transport, ensuring that signing transactions, exporting public keys, and performing device maintenance are done reliably.
Core benefits
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How it works – brief
Installation of Trezor Bridge puts a small local service on your system. When a compatible web app needs to interact with the hardware wallet, it calls the bridge’s local endpoint. The bridge validates the request, negotiates user consent on the device screen, and completes the cryptographic operation. This layered model reduces direct exposure between browser and device.
Quick installation steps
- Download official Trezor Bridge from the vendor site.
- Run the installer and allow the local service to start.
- Open your wallet web app and connect the device following on-screen prompts.
Troubleshooting highlights
If connections fail, check USB cables, restart the Bridge service, or reinstall using the official installer. Avoid third-party bridge packages — use the official release to reduce risk.
Frequently Asked Questions
Yes. Trezor Bridge is designed as a minimal local service that performs only device communication and does not transmit private keys. Always download the official build and verify signatures where available.
Generally, yes for desktop browsers. Mobile workflows often use different transports (Bluetooth or mobile apps). For desktop web apps, Trezor Bridge streamlines the experience.
Grant the installer permission in system settings or use an elevated (administrator) run. Verify the installer hash before running to be safe.
Visit the official site periodically. The bridge usually notifies users when an update is recommended. Installing the latest version keeps compatibility and security current.
No. It only relays signing requests; the private keys remain inside the hardware wallet. The device will always ask you to physically confirm actions on its screen.